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

https://romeo-wiki.win/index.php/How_Do_I_Add_a_Meta_Robots_Noindex_Tag_in_HTML%3F_A_Comprehensive_Guide_for_Technical_Cleanup

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 URL from its index over time. For an immediate emergency block, use the Search Console Removals tool