Folders not coming up on search

Hi, I have a Macbook Pro running OSX 10.6.8.

I store all my mp3s in folders on a 2TB Glyph Hard Drive.

I did a search with Finder for a folder and it didn't show up on the search.

I knew I definitely had this folder on the drive in it's own folder.

So I opened up the Glyph Hard Drive and looked through and the folder was in there.

But yet it still doen't show up when I do a search.

The folder name has no special characters.

Is there a way to fix this problem?

Thanks