In the new VS 2013 RC Version it´s not possible to create a search on a Branch with a "Find by Wildcard" or "Find by Status" Expression.
In VS 2012 it was possible to create a search request over the contextmenu in the Source Control Explorer. To reproduce the problem do the following steps:
Open the Source Control Explorer in VS 2012 and navigate to a branch. On the branch I´m open the context menu and navigate to Find and then "Find by Wildcard".
In VS 2013 RC there are the 2 items "Find by Status" and "Find by Wildcard" are removed.