I use SearXNG. It is a meta search engine so it use results from various other search engines and you can specify which with !. It does the job for me.
Venn diagrams representing more than 3 sets don’t work if you keep using 2d circles to represent all the sets. For example, in this diagram there’s no intersection of ºF451 with and only with BNW, or 1984 with and only with AHT.
lemmy.ml is a lemmy instance run by the developers of lemmy. lemmy.ml is federated with hexbear, so you can read their posts and we can read your posts.