Perhaps you should try some spelling variations:
dong hoang » hong hong
hyoung hai » hong hai
wang yong » wang yang, wang hyoung, wang yan
chuan dan » chuan dato, chuan bang, chuan fa
sang minh » kang minah, anh minh, song min
ka chuan » say chuan, hai chuan, ka chai
yang min » yang mind, yang jin, tang min

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 hoang) OR (wang yong)) ka chuan dan ((yang min) OR (sang minh)) hyoung hai ;~.
• Adding a wildcard symbol may retrieve word variants: ((dong hoang) or (wang yong)) ka chuan dan ((yang min) or (sang minh)) hyoung hai ;*.