Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
chen ying » chen yang, chen ping, chen jing
ying john » king john, young john, ying jin
john song » john wong, john bonn, john ngosong
yong yan » yang yang, ying yang, yong yoon
hua chen » jui chen, yu chen, a chen
shin » skin, sein, thin

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 yan) OR (dong yang)) hua chen ying john song shin ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((yong yan) or (dong yang)) hua chen ying john song shin ;*.