Searching for Content with Workbench
Combining the simple site search and the personalized content listing in My Workbench is the Workbench search feature!
Search for your own content
To find only content that you have created or edited, start on the Workbench main screen, and click either "My Edits" or the "view all" link underneath your list of recent edits.
On the next screen you can search and filter as desired.