This has recently been my desperation move when e.g similar bugs to what I'm facing were solved a decade ago (but were irrelevant) were coming out as top results rather than bugs for a recent version
Consider using alternative SE's like you.com or neeva, they give you the ability to rank sources and e.g. set Reddit as a preferred site so you don't have to type site:reddit.com every single time. Works great and saves time.
That's how a search engine should work: it returns only what you asks of it, knows how many results there are, can be forced to use your query verbatim.
