Currently it is impossible to filter by music creator (and I do mean creator, not uploader) and keywords at the same time. Can this functionality be added? Its a major drawback of the current system. A work around is editing the URL like follows: https://create.roblox.com/store/audio?artistName=Tobu&keyword=Candyland
3rd year anniversary of this update 
hello theovert, with yeehaw.mp3. we will never know what yeehaw.mp3 is