How to find wasted search terms in Google Ads

Keywords are what you bid on, search terms are what you get

When you build a Google Ads campaign you choose keywords. But Google does not only show your ad for those exact keywords. Depending on your match types, it shows your ad for a much wider set of real queries. Those real queries are your search terms, and they are where budget quietly leaks.

The gap between the two is the whole problem. You bid on "office chair", and Google also serves your ad for "office chair repair", "free office chair", and "office chair assembly jobs". None of those buy a chair from you, but each one can cost you a click.

Start with the Search Terms report

The Search Terms report is the single best source of truth. It shows the actual queries that triggered your ads over a date range, alongside the usual metrics: impressions, clicks, cost, and conversions.

Read it looking for a few recurring patterns of waste:

• Free-intent queries: "free", "diy", "template", "how to make". These people want to avoid paying.
• Job seekers: "jobs", "salary", "careers", "hiring". They are researching employment, not buying.
• Competitor and brand names you do not sell.
• Wrong vertical or wrong product: queries that look related but are for something you do not offer.
• Informational queries with no buying intent, when your goal is a sale.

Sort by cost to find the terms burning the most budget first. A single high-cost irrelevant term can be worth more than a hundred cheap ones.

Turn the irrelevant terms into negative keywords

Once you have identified an irrelevant search term, you exclude it with a negative keyword. Negatives are the inverse of keywords: instead of triggering an ad, they suppress it.

You can add negatives at three levels:

1. Ad group for a narrow, local exclusion.
2. Campaign for anything that should never show in that campaign.
3. Shared negative keyword list applied across many campaigns or accounts, which is the efficient choice when you manage a portfolio.

Choose the match type deliberately. A negative broad match blocks any query containing all your terms in any order, phrase blocks them in order, and exact blocks only the exact query. Aggressive negatives can block traffic you actually want, so it pays to be precise.

The real bottleneck is consistent review at scale

Finding a handful of obvious junk terms is easy. Doing it thoroughly, every month, across every account, is not. A busy account produces thousands of new search terms, and reviewing them by hand runs four hours per account per week. Skip a week and the waste compounds.

This is exactly the work NegativeShield automates. It reads every search term in the context of what each account actually sells, marks each one relevant or irrelevant with a one-line reason you can check, and lets you apply the negatives you approve in one click through the official Google Ads API. You keep the judgment and drop the hours.

If you want to see what that looks like on your own account, get a free audit of one account and we will show you the junk terms and the reasons before you pay anything.