Yeah, we need more information. Most of us only specialise in a handful of genres so you need to tell us what genre/style you want the music to be. Linking us to some existing tracks which have the style you're looking for can help too.
Apart from that, we need to know if there are any deadlines (and if so, when), what you have planned for this project, if it's a paid project, how much music you need, how many sound effects you need, and so on. Any information helps. If you have some kind of portfolio or screenshots/script segments of the project it will also increase your chances of finding anyone interested in this, because as you can imagine, any audio artist would be wary of someone with no content submitted to the site asking people for music.
Hope that helps.