Perhaps you should try some spelling variations:
tang yuan » fang yuan, tang yun, wang yuhan
zhang han » zhang fan, zhang yan, zhang hanmo
kang chen » chang chen, jane chen, kang han
wing yan » wang yan, wing ian, wing tan
yan tang » yan wang, yang yang, tang tang
yuan tan » huan t'an, yuan kang, yuan ting
tan yang » dan yang, tan ying, tan yong
yang yi » yang di, yang xi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing yan tang yuan tan yang yi ((zhang han) or (kang chen)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing yan tang yuan tan yang yi ((zhang han) OR (kang chen)) ;*.