Obligatory reminder that we used to live in a world where you could put "foo -bar" into a search engine, ctrl-F for foo on the top ten results and find it every time, and ctrl-F for bar on the top ten results and not find it.

Yeah, I've even had cases where DDG ignored my quoted string in the search. It's literally the whole point of the quotes but especially when it contains things like German umlauts it'll just accept any replacement letter for them. And yes, getting no results is acceptable, in fact it is the only correct outcome.