Perhaps you should try some spelling variations:
tang weng » huang weng, tang zheng, tan eng
weng fang » jing fang, wen wang
fang yuan » wang yuhan, wang yan, meng yuan
kang chen » chang chen, jane chen, kang han
yuan tan » huan t'an, yuan kang, yuan ting
tan yang » dan yang, tan ying, tan yong
kang hay » eang hay, kang han, dang hai
yang xi » yang di, 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: tang weng fang yuan tan yang xi ((kang hay) OR (kang chen)) ;~.
• Adding a wildcard symbol may retrieve word variants: tang weng fang yuan tan yang xi ((kang hay) or (kang chen)) ;*.