Perhaps you should try some spelling variations:
hong dong » hong kong, hong jong, hong hong
can hong » tan hong, care hong, wang hong
dong hua » wang hua, tong hui, dong hoi
yang jui » yang judy, yang di, yang yi
yan jiu » yang jie, yang jin, pang jiu
yang xi » yang di, yang yi
won sau » wong sau, wong sam, wong siu

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: can hong dong hua (rain OR gain) ((yan jiu) OR (((yang jui) OR (yang xi)))) won sau ;~.
• Adding a wildcard symbol may retrieve word variants: can hong dong hua (rain or gain) ((yan jiu) or (((yang jui) or (yang xi)))) won sau ;*.