Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
yong yang » yang yang, dong yang, ying yang
liu gang » liu gangs, li gang, liu feng
liu yang » liu yan, du yang, liu feng
wong sau » wong sam, wong siu, wong shiu
von sach » von fach, von sprach, von sa
yang li » yang lin, yang di, yang xi

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 yong yang li ((liu gang) OR (liu yang)) min ((wong sau) OR (von sach)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yang li ((liu gang) OR (liu yang)) min ((wong sau) or (von sach)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yong yang li ((liu gang) OR (liu yang)) min ((wong sau) or (von sach)) ;*.