Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
case dann » case anna, case anne, case das
one case » some case, one class, one phase
dann bin » dong bin
yong jin » yang jin, ying jin, song jin
yang jui » yang judy, yang yi
yang xi » yang yi

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: one case dann bin we ((((yong jin) OR (yang liang))) OR (yang xi)) ((yang jui) OR (yang di)) ;~.
• Adding a wildcard symbol may retrieve word variants: one case dann bin we ((((yong jin) or (yang liang))) or (yang xi)) ((yang jui) or (yang di)) ;*.