We can search for accepted answers. But can we search for answers that were awarded bounties? If not, we should be able to.
Answers that earn a bounty are often of interest for being notably deep or esoteric, as necessitating the bounty in the first place. I feel that it would be beneficial to find these posts more easily. There already advanced search operators for number of answers, number of views, score, etc.; this seems to be of a similar nature and should not be difficult to implement.