Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yuan ting » yuan ming, huang ting, yuan kang
yang can » yang fan, yang dean, yang jin
wang hui » wang hua, wang zhi, wang wei
ta chen » a chen, hua chen
yu chen » yu cheng, yi chen, yulu chen
can ta » can tax, can tb, can take

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang yang can ta chen ((yuan ting) or (yu chen)) ((wang hui) or (cong shu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang can ta chen ((yuan ting) OR (yu chen)) ((wang hui) OR (cong shu)) ;*.