Perhaps you should try some spelling variations:
wang dong » wang yong, wang hong, wang yang
dong tang » dong yang, dong hoang, hong tan
tang yun » yang yun, chang yun, fang yuan
yun gain » run gain, you gain, n gain
kang hay » eang hay, kang han, dang hai
yang xi » yang jui
yang yi » yang jui

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: wang dong tang yun gain ((yang di) OR (((yang xi) OR (yang yi)))) kang hay ;~.
• Adding a wildcard symbol may retrieve word variants: wang dong tang yun gain ((yang di) or (((yang xi) or (yang yi)))) kang hay ;*.