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