Perhaps you should try some spelling variations:
wang dong » wang yong, wang hong, wang yang
liu zhang » li zhang, liu yang, bin zhang
zhang xin » zhang jian, zhang ming, zhang fan
wong sam » wong sau, wong lai, kong sar
kong siu » kong eiu, wong siu, dong sin
yang xi » yang di, yang jui
yang yi » yang di, yang jui
von sam » von sa, von sap, von scham

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 dong ((yang xi) OR (yang yi)) liu zhang xin ((((wong sam) OR (kong siu))) OR (von sam)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang dong ((yang xi) OR (yang yi)) liu zhang xin ((((wong sam) or (kong siu))) or (von sam)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang dong ((yang xi) OR (yang yi)) liu zhang xin ((((wong sam) or (kong siu))) or (von sam)) ;*.