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

https://www.scribd.com/document/1016382702/Why-Did-My-Removed-Page-Come-Back-After-a-Search-Console-Removal-212072

If you need to hide pages from search results, start by adding a "noindex" tag to the page code. This tells Google to drop the content from its index permanently. If the page is already gone, return a 404 or 410 status code