Perhaps you should try some spelling variations:
hyoung yan » kyoung yang, hyoung gun, kyoung yun
jui zhang » li zhang, jia zhang, xi zhang
jie zhang » jia zhang, li zhang, bin zhang
yan yuan » yan guan, fang yuan, nan yan
tan yang » tan ying, tan yong, tao yang
dan yang » daun yang, wang yang, yang yang
wang » wan, lang

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 OR wing) hyoung yan yuan ((tan yang) OR (dan yang)) ((jui zhang) OR (jie zhang)) han ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or wing) hyoung yan yuan ((tan yang) OR (dan yang)) ((jui zhang) or (jie zhang)) han ;~".
• Adding a wildcard symbol may retrieve word variants: (wang or wing) hyoung yan yuan ((tan yang) OR (dan yang)) ((jui zhang) or (jie zhang)) han ;*.