contact pages

I don't know what sales force does, but certainly you can have key words and pull reports.  If you better describe a typical query format like are these key words being treated as an AND (needs all key words) or as an OR (one of the key words), then I'm sure there is a way to design a report to pull that.

Note also that a super low tech solution is that at the top of report there is that filer box.

if you type
cats

then all records on that report with a column on the report containing cats will get a hit.

If you type cats AND dogs with the AND in upper case, then the hits must contain both cats and dogs

If you type cats OR dogs, with the OR in upper case then you will get hits on either cats or dogs.