hi Mark, you can also search on text such as name, description, notes, etc. On the search page, there's an option to search the entire workspace, which I highly recommend. Workspaces are individual containers, so you can't move work items from one workspace to another, therefore can't search multiple workspaces in one search. That being said, once you are on the search page, you can switch between workspaces and rerun the same search if you would like. I hope that helps
-Edwin