I have a folder called "Receipts".  When receipts go into this folder, they are supposed to file under a date subfolder structure (i.e. rec 2014).  Unfortunately, there was a problem where a lot of folders were created with people's names instead (i.e rec Smith, Bob).  I am trying to format a search that will return any document that lies in a folder called "rec [some name]" but leave out documents that are in folders called "rec [some year]".  Here is the search I put together:

{[Receipt]} & {LF:LOOKIN="Main\Credit Union Daily Work\Receipts\rec [A-Z]*"}

The search doesn't error out, but it doesn't return any results.  What am I missing?