Perhaps you should try some spelling variations:
hyoung hai » hong hai
dong yang » dong hoang, wang yang, yang yang
wang yong » wang yang, wang hyoung, wang yan
yang min » yang mind, yang jin, yang lin
tang min » chang min, sang minh, yang mind
hua dan » hua ban
ka hua » ya hua, ka chuan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong yang) or (wang yong)) ka hua dan ((yang min) OR (tang min)) hyoung hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong yang) OR (wang yong)) ka hua dan ((yang min) OR (tang min)) hyoung hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong yang) or (wang yong)) ka hua dan ((yang min) OR (tang min)) hyoung hai ;*".