Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
yong gang » gong gang, hong gang, yong phang
chang hay » change has, chang mae, chang hee
gang yan » wang yan, gang yao, wang yang
wang jin » wang jing, wang jun, wang lin
yang jin » yang jie, yang jun, ying jin
chang ha » chang mae

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 gang yan yiqian ((wang jin) OR (yang jin)) ((chang hay) OR (chang ha)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong gang yan yiqian ((wang jin) or (yang jin)) ((chang hay) OR (chang ha)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yong gang yan yiqian ((wang jin) or (yang jin)) ((chang hay) OR (chang ha)) ;*.