A Google Ads search campaign delivers results when its structure separates different intents. Each campaign groups what shares budget, location and bidding. Each ad group has one narrow theme, with keywords similar to each other, ads that repeat those keywords and a landing page about the same topic. When everything lands in a single ad group, Google shows the same ad to people who want to buy and people who want to learn, and the budget goes to clicks that never become customers.
This article is for those who already advertise and feel the account has turned into a messy drawer. If you’re still building your first campaign, start with the step-by-step on how to create a Google Ads campaign and come back here afterward.
The search is real and competitive. In Keyword Planner (October 2026, Brazil), “campanha de pesquisa google ads” shows 30 searches per month and a top-of-page bid of up to R$75.67. “Google ads rede de pesquisa” has another 30, with a bid of up to R$72.48. Few people search for it, but those who do have money on the table.
Why Google Ads search campaign structure matters so much
Google decides which searches your ad appears on by looking at the ad group’s keywords, the ad text and the page. The keyword match types page says that with broad match, the system even considers the other keywords in the ad group to understand intent. If the group mixes “labor lawyer”, “worker rights” and “severance calculator”, the signal you send is confusing.
Google’s own Help Center, in the article on organizing your account with ad groups, recommends building each ad group around a specific theme and says there is no single correct structure. It offers a practical tip that works well: mirror the pages or categories of your website.
The problem shows up in the report. A generic ad group gets a low CTR, a low Quality Score and a higher bid for the same auction. The guide on Quality Score in Google Ads explains how the relevance between keyword, ad and page factors into this.
The three levels and what each one decides
| Level | What you set there | When to open a new one |
|---|---|---|
| Campaign | Budget, location, language, bid strategy, schedule | When budget, location or cost target changes |
| Ad group | Theme, keywords, ads, landing page | When the search intent or the page changes |
| Keyword | Match type and bid (manual) | When a term deserves its own control |
Google’s organization article says the same thing in other words. Create a new campaign when you need different settings, such as location targeting or budget. If all ads use the same budget and the same location, one campaign is enough.
A campaign separates money, not topics
The most common mistake we see is opening one campaign per service when the services share the same budget and the same city. With five small-budget campaigns, none has enough volume for automated bidding to learn. Split campaigns when the margin is different (one service accepts a higher cost per lead), when the location changes or when a service needs guaranteed budget.
Brand deserves its own campaign. People who search for your company name convert differently, and mixing that with generic search makes your cost per conversion look better than it is.
An ad group separates intent
Within the campaign, each ad group answers one customer question. For a dental clinic, “dental implant” and “teeth whitening” are different ad groups, because the ad, the page and the patient’s value are different. “Dental implant price” and “how much does an implant cost” can stay together, because the intent is the same.
A quick test to see if an ad group is good: can you write one ad that fits all of its keywords without sounding generic? If not, the group has two themes.
Keywords and match types
Google describes three match types. Exact match shows the ad for searches with the same meaning as your keyword. Phrase match covers searches that include the meaning of the keyword. Broad match goes further and reaches related searches, even those without the direct meaning. The same page recommends using Smart Bidding with all match types, especially broad.
In practice, accounts with little conversion history usually start with phrase and exact match and open up broad match once conversions are tracked and automated bidding has data. The choice and fine-tuning are covered in the article on Smart Bidding in Google Ads.
Ads and page within each ad group
The responsive search ad accepts 3 to 15 headlines, up to 30 characters each, and 2 to 4 descriptions, up to 90, according to the official responsive ads page. Google recommends at least two responsive ads with Good or Excellent ad strength in each ad group.
The account organization article asks for the headline to mention at least one keyword from the group. With one theme per ad group, this comes naturally. With ten themes, the ad turns into a list of services that convinces no one. For the copy itself, see how to write ads in Google Ads.
The landing page completes the trio. Someone who searched “teeth whitening” and landed on the clinic’s home page, with ten services in the menu, goes back to Google. One ad group, one theme, one page.
How to reorganize a search campaign that’s already running
Restructuring has a cost. On the same organization page, Google warns that changing the structure after many campaigns and ad groups have been created can erase accumulated data and hurt performance. That’s why the order matters.
- Download the search terms report for the last 90 days and mark the searches that generated conversions. They show which themes actually exist.
- Group those searches by intent. Each set of similar searches becomes an ad group.
- Check that each theme has a page on the site. A theme without a page goes into a temporary ad group or waits until the page exists.
- Keep the ad groups that already convert well as they are and move only what is mixed.
- Write two ads per new ad group, with the main keyword in the headline.
- Add the negative keywords that separate one ad group from another, so two groups don’t compete for the same search.
- Wait two to four weeks before judging. A big change restarts the learning of automated bidding.
Step 6 is the one most often forgotten. Without cross negatives, the search “dental implant price” can land in the whitening group and the report stops making sense. The guide on negative keywords in Google Ads shows how to build these lists.
Signs that the structure is getting in the way
Some things show up in the account before they show up in revenue.
- The same search term appears in two ad groups or two campaigns.
- One ad group takes almost all the spend and the others barely get impressions.
- The search terms report shows many searches from people looking to learn, find a job or take a course.
- The ad has headlines that talk about three different services.
- All keywords lead to the home page.
If three of these show up together, the account needs reorganizing, not more budget. The article on Google Ads spending too much covers the budget side.
How much a click costs changes the structure
In high-cost-per-click industries, every generic ad group costs more. In our CPC study by industry, done in Keyword Planner in October 2026 with 432 searches across 103 industries, the median was R$4.96 per click. Home services had a median of R$6.24 and retail came in at R$1.78.
With a tight budget and expensive clicks, it makes sense to have fewer, more focused ad groups on searches from people who already want to hire. Opening ten ad groups with budget for two dilutes the data and nobody learns anything.
If you’re deciding between Search, Performance Max and other formats, this comparison of Google Ads campaign types shows where Search fits.
Frequently asked questions
What is a Search campaign in Google Ads? It’s the campaign that shows text ads in Google results when someone searches for terms related to your business. You pay per click, and your ad appears based on keywords, bid and quality.
How many keywords should go in each ad group? Google doesn’t set a number. What matters is the theme: every keyword in the group should fit the same ad and the same landing page. In practice, groups with a few closely related keywords are easier to control.
Should I separate the Search Network from the Display Network? For campaigns focused on people who are searching, yes. Display has different click behavior and costs, and mixing the two networks makes reports hard to read.
How many ads per ad group? The responsive search ads page recommends at least two ads with Good or Excellent ad strength per ad group.
Does reorganizing a campaign erase its history? It can. Google warns that restructuring after creating many campaigns can wipe out accumulated data. That’s why the safe path is to change only what’s mixed up and keep what already converts.
Does broad match work in a small account? It works better with Smart Bidding and well-measured conversions, as Google itself recommends. Without reliable conversion data, it tends to chase volume instead of customers.
An account organized to sell
At Ciclicko, we first check the search terms report and the conversions, and only then redesign ad groups and campaigns, so we don’t lose the history that already works. If you want a read on your account before changing anything, the free Google Ads audit shows where your structure is leaking budget. For ongoing work, see our Google Ads management.
Prefer to talk first? Message us on WhatsApp and tell us how your account is set up today.