Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
chen yang » chen rong
thanh vu » thanh van, thanh _
yuan hui » yuan fei, jaan hui, yang hui
tuan hua » tan hua, tuan vu
yang cho » yang chik, yang yao, san cho
cho tong » choo ting, choi tony, cho sung
tong hui » wang hui

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 ((thanh vu) OR (((yuan hui) OR (tuan hua)))) chen yang cho tong hui ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang ((thanh vu) or (((yuan hui) OR (tuan hua)))) chen yang cho tong hui ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang ((thanh vu) or (((yuan hui) OR (tuan hua)))) chen yang cho tong hui ;*.