If you need to hide pages from search results, start by adding a noindex tag to...

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

If you need to hide pages from search results, start by adding a noindex tag to the page header. This tells Google to drop the URL from its index over time. For immediate action, use the Removals tool in Google Search Console