To start looking for candidates, you click on the "COMATCHing" dropdown in the main navigation, then click on "Consultant pool."
You can now filter the candidates by industry expertise, functional expertise, and language skills. As you filter for candidates, you see the number of available candidates update in realtime.
You don't actually get candidate results here, just more information about the candidates on the profile. It seems you can only start finding candidates once you have an approved project on the platform.