To be honest, I don't think of this as a new feature. You have a search option that already exists. If I search on regular youtube, it should show me the results of that search. But if search from the VR tab, it should show me VR videos that fit my search. Let me state it more categorically. Search malfunctions and just shows you a regular search when you do it from the VR tab...and as a result, there is no way to search for VR videos on the VR tab in the youtube portion of Skybox. Thats a bug, not a request for a new feature.