Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
yuan gain » run gain, yuan kai, yuan lin
yong yan » yang yang, ying yang, yong yoon
yang jui » yang judy, yang di, yang yi
kang hay » eang hay, kang han, kang tae
yang xi » yang di, yang yi
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 yan) OR (dong yang)) yuan gain ((yang jui) OR (yang xi)) ((kang hay) OR (dang hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yong yan) or (dong yang)) yuan gain ((yang jui) OR (yang xi)) ((kang hay) or (dang hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yong yan) or (dong yang)) yuan gain ((yang jui) OR (yang xi)) ((kang hay) or (dang hai)) ;*.