Perhaps you should try some spelling variations:
sudan chen » sudan ch
yan sudan » kano sudan, yan guan, yan yuan
wang yang » wang yan, wang liang, wang yanling
wong shiu » wong siu, cong shu, song shin
kong saur » kong sar, kong siu, kong your
chen yun » chen yu, chen yue, chen yiqun
yun wang » yuan wang, yan wang, yu wang
yang jin » yang jie, yang jun, ying jin

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

• Performing a fuzzy search may retrieve terms with similar spellings: yan sudan chen yun wang yang jin ((wong shiu) or (kong saur)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yan sudan chen yun wang yang jin ((wong shiu) OR (kong saur)) ;*.