Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
zhang wei » zhen wei
wing tan » wing ian, liang tan, hong tan
yang yue » wang yue, yang yun, yang yi
yang jui » yang judy, yang di, yang yi
wei wong » wei wang, we won, wei ming
wong sam » wong sau, wong lai, kong sar
yang xi » yang di, yang yi

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing tan ((((yang yue) or (wang yan))) or (((yang jui) OR (yang xi)))) cheng zhang wei wong sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing tan ((((yang yue) OR (wang yan))) OR (((yang jui) OR (yang xi)))) cheng zhang wei wong sam ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing tan ((((yang yue) or (wang yan))) or (((yang jui) OR (yang xi)))) cheng zhang wei wong sam ;*".