Perhaps you should try some spelling variations:
wang woman » man woman
china gene » china gender, china agenda
woman can » women can, man can, woman c
yang jui » yang judy, yang xi, yang yi
wong sau » wong shiu, wong lai, kong sar
wong siu » wong shiu, kong siu, wong siew
wong sam » wong lai, kong sar, von sam

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 woman can china gene ((yang jui) OR (yang di)) ((((wong sau) OR (wong siu))) OR (wong sam)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang woman can china gene ((yang jui) or (yang di)) ((((wong sau) OR (wong siu))) or (wong sam)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang woman can china gene ((yang jui) or (yang di)) ((((wong sau) OR (wong siu))) or (wong sam)) ;*.