Perhaps you should try some spelling variations:
jane chen » jean chen, jie chen, kang chen
wang gan » wang yan, wang ban, wang dan
gan guan » yan guan, quan guan, fan guon
yang jie » yang jin, yang jui, yang jun
wong sam » wong sau, wong lai, kong sar
yang xi » yang jui
yang yi » yang jui

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang gan guan jane chen ((((((yang xi) OR (yang yi))) OR (yang di))) OR (yang jie)) wong sam ;~.
• Adding a wildcard symbol may retrieve word variants: wang gan guan jane chen ((((((yang xi) or (yang yi))) or (yang di))) or (yang jie)) wong sam ;*.