I was wondering how to search something that was in the trash folder in my macbook…. not easy. This is the way to do it:
Go to the Finder, select Go > Go To Folder and type in ~/.Trash to bring up a Finder window showing the contents of your Trash, but this time around, Mac OS X recognizes it as a searchable window.
Type your search criteria, and then be sure to select .Trash as the location you’re searching (if you choose This Mac, the results you’re looking for won’t be found).