Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
wang yong » wang yang, wang hyoung, wang yan
t'an yang » tan yang, dan yang, tao yang
long tan » hong tan, long thanh, long tail
long han » long chain, long thanh, long haul
yang li » yang lin, yang di, yang xi
huan » human, huang, chuan

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 huan t'an yang li ((dang hai) OR (((long tan) OR (long han)))) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (wang yong)) dean huan t'an yang li ((dang hai) or (((long tan) OR (long han)))) ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang yong)) dean huan t'an yang li ((dang hai) or (((long tan) OR (long han)))) ;*.