Perhaps you should try some spelling variations:
dong ryangg » dong yang
wang kyoung » wang hyoung, hwang byoung, wang yong
rana hua » wang hua, tan hua
hua rent » hua ren
rent yan » ren yan, rent a
tan yong » tan hong, tan kong, tan yang
yong yue » wong yue, yang yue, young yun
yan tan » tan tan, yan clan, yan guan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong ryangg) or (wang kyoung)) rana hua rent yan tan yong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong ryangg) OR (wang kyoung)) rana hua rent yan tan yong yue ;.
• Adding a wildcard symbol may retrieve word variants: ((dong ryangg) or (wang kyoung)) rana hua rent yan tan yong yue ;*.