I am a freenlancer, just want to know if the odesk platform has a search by portfolio item, so that clients can find the right freelancer for a similar job?
That's... actually a very interesting idea.
I'm pretty sure there isn't anything like that. I don't even know if anybody has thought of something like that.
But I bet there would be people who would like it.
We have this functionality on Elance (Search by Portfolio), but not on oDesk as of yet. We'll share your feedback with our development team for their consideration.