Hello,
I'm not referring to the SmithSearch module or Product Listing Search box. In your Manage Products screen there is a search box located at the top of the screen (Please see screenshot below). Are you able to search and located the test Products using the Manage Products search?
If you aren't able to locate the Products via the Manage Products screen, I recommend deleting your test products via SQL Server by deleting their records in the Smith_Products and Smith_Products2 tables.
Please let me know if you have any questions.