I have a folder with PDFs and have names that include a product code, name, and a lot number. An example would be AAA1234 CHEMICAL ABC 03179664.pdf If I type "0317" in the Finder search box, it immediately starts finding matches and then narrows down the results as I type more. That is how I expect it to work. If I type "9664" though, it finds .... nothing. Why doesn't it ?