Hi Adventuretrucks
Are you using the latest ATUM version?
As I previously said, the searching is working correctly. Check this screenshot:

So if it is not working for you and you are using the latest version, you should debug your issue by disabling all your plugins except ATUM and WooCommerce, and also switch to any default theme.
If it works that way, you can start enabling them back one by one until you find the source of the issue.
Best Regards,
Salva.