Perhaps you should try some spelling variations:
yuan wang » yuan kang, yuan chang, qian wang
chen yuan » chen yulan, chen yun, chen yugang
yan wang » yang yang, qian wang, yan liang
yuan tan » huan t'an, yuan kang, yuan ting
hong yu » wong yue
wang a » wang _, fang a, lang a
a chen » ta chen, _ chen, n chen

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: ((yuan wang) OR (yan wang)) wang a chen yuan tan hong yu ;~.
• Adding a wildcard symbol may retrieve word variants: ((yuan wang) or (yan wang)) wang a chen yuan tan hong yu ;*.