Perhaps you should try some spelling variations:
yang yuan » fang yuan, yan yuan, yang yun
t'an yang » tan yang, dan yang, tao yang
yuan kang » yuan wang, yuan chang, chan kang
yan guan » gan guan, yan yuan, yang guang
yan clan » das clan, yan yuan
kang sar » kong sar, kang tae, kang ca
huan » human, huang, chuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: nan ((yan guan) or (yan clan)) huan t'an yang yuan kang sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nan ((yan guan) OR (yan clan)) huan t'an yang yuan kang sar ;*.