Perhaps you should try some spelling variations:
long thanh » luong thanh, long han, long trinh
yuan wang » yan wang, yuan kang, yuan chang
qian wang » yiqian wang, qian rong, qian yan
hong dong » hong kong, hong jong, hong hong
dong di » dong sin
hu hong » hou hong, hu yong, hua zhong
sind » find, wind, kind

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: ((long thanh) OR (dong di)) yan ((yuan wang) OR (qian wang)) hu hong dong (sin OR sind) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((long thanh) or (dong di)) yan ((yuan wang) or (qian wang)) hu hong dong (sin OR sind) ;~".
• Adding a wildcard symbol may retrieve word variants: ((long thanh) or (dong di)) yan ((yuan wang) or (qian wang)) hu hong dong (sin OR sind) ;*.