There is a known bug in versions 3.8.2 R3 and 3.8.3 R1. where if you search for a product, all of your products will show up. You can download the fixes below. The file should be uploaded into content/classes and this can be done through your File Manager or FTP.
Fix for 3.8.3 R1: download
Fix for 3.8.2 R1: download