Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang xuan » wang xuan, yang guang, yang dean
chen wong » chen rong, chen wang, chen yong
wong john » wrong john, kong john, longo john
xuan zhu » xuan thuy
zhu chen » zhe chen, zhi chen, zhiwu chen
wong sam » wong sau, wong lai, wong max
von sam » von sa, von scham, von sach
von sap » von sa, von sach
sar » sara, star, saur

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang xuan zhu chen wong john ((((wong sam) or (((von sam) OR (von sap))))) or (kong sar)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang xuan zhu chen wong john ((((wong sam) OR (((von sam) OR (von sap))))) OR (kong sar)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang xuan zhu chen wong john ((((wong sam) or (((von sam) OR (von sap))))) or (kong sar)) ;*".