To remove pages from Google search results, you have a few reliable options....

https://www.apollotechnical.com/how-to-remove-your-own-site-from-google-search-results/

To remove pages from Google search results, you have a few reliable options. Add a "noindex" tag to the page header to tell search engines to drop it from their index. If you need a page gone immediately, use the Google Search Console Removals tool