The search sucks even if videos aren't falsely flagged & hidden. You constantly have to wade through completely unrelated videos that have nothing to do with the search term (and nowadays also a bunch of spammy Shorts that just tag all trending shit), before you actually reach the videos you're actually looking for. In the past you were able to use quotation marks to explicitly search only for the search terms between them, and nothing else, but that feature got quietly canned a while ago.