Is there any way to search for files in specific folders?

So, I have a drive with about 1TB of photos on it. Every photo is in it's own folder and the folder is labelled by event (Think a folder for X&X's Wedding, M's Birthday, X&Y's Wedding, etc.). I'm working on keywording them which at 1TB of stuff, is tedious. However, if I could search by FOLDER and find anything with the word Wedding, I could batch keyword all the stuff for Weddings. 

I can't seem to find anything online on how to do this though and the search capabilities makes me think this isn't possible.