Perhaps you should try some spelling variations:
our class » per class, our case, labour class
thing jin » shang jin, ying jin, zhang jin
our last » our past, over last, our case
dong bin » dong di, dann bin
jin song » jie song, john song, kim song
wan yan » wang yan, nan yan, wai yan
song so » song von

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((wan yan) OR (((dong sin) OR (dong bin)))) ya ((our last) OR (our class)) thing jin song so ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan yan) or (((dong sin) or (dong bin)))) ya ((our last) OR (our class)) thing jin song so ;~".
• Adding a wildcard symbol may retrieve word variants: ((wan yan) or (((dong sin) or (dong bin)))) ya ((our last) OR (our class)) thing jin song so ;*.