Perhaps you should try some spelling variations:
chen yiqun » chen yun, shen yijun
chan fong » chew fong, chan eng, chan kang
yang yang » wang yang, wang yan
kang han » kang chen, kong hang, zhang han
can wage » can we, non wage
yang jin » yang jie, yang jun, ying jin
wang » wing, wan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (wang or lang) kang han ((can wage) or (chan fong)) ((yang yang) or (yang jin)) chen yiqun ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR lang) kang han ((can wage) OR (chan fong)) ((yang yang) OR (yang jin)) chen yiqun ;.
• Adding a wildcard symbol may retrieve word variants: (wang or lang) kang han ((can wage) or (chan fong)) ((yang yang) or (yang jin)) chen yiqun ;*.