The 4 dropdown boxes let you select any combination of track, car, specialty or media.
The SSA Product Number box doesn't need the full number; for example, S282 can be searched as 282.
Similarly in the Product Name box, you don’t need the full proper title of a product. You can search by key words such as "I.M.C.A.", "dirt", "paved", "stock car", "sprint", "midget", etc.