There is a tool for that. Hay's sdsearch does a good job when its interface is localised. Sadly, no such luck for Georgian. Wikimedia produced a tool as well; Special:MediaSearch does a good job. You have to know that the tool exists and when you do, you find that for Dutch it does not work at all.
It is suggested that you can change the preferences for best result. I fail at getting the results that Special:MediaSearch used to provide. There is no documentation.. Please Help!!