Perhaps you should try some spelling variations:
wang dong » wang yong, wang hong, wang yang
rein gang » ein gang, ein ganz, den gang
wong sau » wong sam, wong siu, wong shiu
yang yi » yang di, yang xi, yang jui
gang li » gan li, tang li, wang li
hong yu » wong yue
yang i » yang di, yang xi, yang li

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 i) OR (yang yi)) rein gang li ((wong sau) OR (hong yu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang dong ((yang i) OR (yang yi)) rein gang li ((wong sau) or (hong yu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang dong ((yang i) OR (yang yi)) rein gang li ((wong sau) or (hong yu)) ;*.