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

https://tango-wiki.win/index.php/Why_Does_Google_Still_Show_an_Old_Title_and_Snippet_After_I_Updated_the_Page%3F

If you need to hide pages from search results, start by adding a "noindex" tag to the page header so Google ignores it during future crawls. For urgent removals, use the Search Console Removals tool to pull content instantly