Help with this api call...Am i missing something

Question

I am currently trying to find a way to make a request to get only the songs for artist with two bits of information for example.

I am searching for any of Ushers songs that have the word remind in them

Here's an example for Usher

http://ax.itunes.apple.com/WebObjects/MZStoreServices.woa/wa/wsSearch?term=usher

I see many other examples here on the API page but nothing where i can send in two options. I basicially have a dropdown and i want to autocomplete the song names...so i will already have the artist name and i will have the song name and i need to construct an api call

Any ideas or an example that i can use would be highly appreciated