Perhaps you should try some spelling variations:
huang t'an » huan t'an, huang juan, huang tao
dean huang » doan quang
long thanh » luong thanh, long han, long trinh
yang yang » wang yang, wang yan
wang yong » wang yang, wang hyoung, wang yan
t'an yang » tan yang, dan yang, tao yang
yang li » yang lin, yang di, yang xi

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: ((yang yang) OR (wang yong)) dean huang t'an yang li ((dang hai) OR (long thanh)) ;~.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang yong)) dean huang t'an yang li ((dang hai) or (long thanh)) ;*.