I have a 2 year old and he's not talking all that much and the words that he dose say we have a hear time understanding him so how can we work with his words with him

You need to be patient and work with him daily to help him properly form his words. This can be done with 15 minute sessions several times a day so as not to bore him and keep him interested in learning to talk. Choose simple words at first showing him say a picture of the word. He'll get the hang of it in about a month or so with diligent sessions.

If he's still not grasping the idea, then you might need a speech therapist to help you with this. They are not cheap. You may be able to get a discount if the therapist's office has some sort of intern program and lets the intern teach your child. This would be at least a 50% savings per session if you used the intern. Is there any sort of University near you that you could call up and see if they have a speech therapist who takes in their interns? I did this in South Florida using Nova University. The speech therapist my son had ended up being the Director of the Baudaun Oral School at Nova University. She had a regular office near the University and I would have her interns teach my son how to talk. He was 3 and not really talking properly so I went that route. Now I can't get him to shut up some days. No, just kidding. It was worth every penny.