Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang tran » nang trang, yang dean, yang fan
ren brian » min brian, roe brian, tew brian
tran hua » tan hua, tuan hua, tran duc
wong sam » wong sau, wong lai, wong max
hua ren » hua chen
von sam » von sa, von sap, von scham
sar » sara, star, saur

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 yang tran hua ren brian john ((((wong sam) OR (von sam))) OR (kong sar)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang tran hua ren brian john ((((wong sam) OR (von sam))) or (kong sar)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang tran hua ren brian john ((((wong sam) OR (von sam))) or (kong sar)) ;*.