Perhaps you should try some spelling variations:
yan wang » yuan wang, yang yang, qian wang
yang jin » yang jie, yang jun, ying jin
wong sam » wong sau, wong lai, von sam
wan yan » wang yan, nan yan, wai yan
yu chen » yu cheng, yulu chen, jui chen
yi chen » jui chen
yang ji » yang jui, yang jie, yang di
sar » sara, star, saur

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan wang ((yu chen) or (yi chen)) ((yang ji) or (yang jin)) ((wong sam) OR (kong sar)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan wang ((yu chen) OR (yi chen)) ((yang ji) OR (yang jin)) ((wong sam) OR (kong sar)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan wang ((yu chen) or (yi chen)) ((yang ji) or (yang jin)) ((wong sam) OR (kong sar)) ;*".