"Do what you can": Is 做可做的 natural? The title pretty much says it all. It makes sense to me, but Google gives "do it" when I plug the Chinese phrase into it. If 做可做的 sounds awkward or stilted, what would be a better way to express it?
做你能做的

or 

做你可做的 sometimes means 'Do what you allowed'

and

做你力所能及的, Do what you are abled to