Ultimate Chord Finder

I was checking out the Ultimate Chord Finder and I decided to look up a few new chords I recently learned. For some reason I could not find them. There were 3 chords. They are Fadd9,Cadd9 and G5. Could they be referred to by another name? If I'm doing something wrong may be someone can set me straight. Thanks

We don't have those! This is gonna start a big discussion over here. We have the 9 but not the add 9.

Here's what you need:

http://jguitar.com/chordsearch?chordsearch=g5
http://jguitar.com/chordsearch/Fadd9
http://jguitar.com/chordsearch/Cadd9