Perhaps you should try some spelling variations:
brain gain » brain drain
yang yang » wang yang, wang yan
gain jiu » gain job, yan jiu
long shu » cong shu, tong shui, long du
wong sau » wong sam, wong siu, wong shiu
a brain » _ brain
a a » a la
dong » doing, done, hong

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: ((dong sin) OR (yang yang)) a a brain gain jiu ((long shu) OR (wong sau)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong sin) or (yang yang)) a a brain gain jiu ((long shu) OR (wong sau)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((dong sin) or (yang yang)) a a brain gain jiu ((long shu) OR (wong sau)) ;*.