Just a FYI: This has been requested and discussed in the past. You may want to click on what I said in post below. Check out screenshots too.
That said, may go ahead and tag @solso on this as well to see if he might be able to add more onto the conversation. Unfortunately Jan stopped replying to me on anything and I’ve no idea where Search stands. Last year he said that he was going to reply with info on ways to help refine searches, or which search operators were available.