Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
wang yong » wang yang, wang hyoung, wang yan
yong gang » gong gang, hong gang, yong phang
yuan wang » yan wang, yuan kang, qian wang
gang yan » wang yan, gang yao, wang yang
eang hay » kang han
hai » hadi, haji, hari

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