It looks like google is manipulating the entered search queries to make them more profitable for google.

"Say you search for “children’s clothing.” Google converts it, without your knowledge, to a search for “NIKOLAI-brand kidswear,” making a behind-the-scenes substitution of your actual query with a different query that just happens to generate more money for the company, and will generate results you weren’t searching for at all. It’s not possible for you to opt out of the substitution."

From https://www.wired.com/story/google-antitrust-lawsuit-search-results/