Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
joon chang » hoong chang, boon chong, jin chang
yan liang » yang liang, wang liang, you liang
yang joon » kyung joon, yang jin, yang jun
yan guan » gan guan, yan yuan, yang guang
tan yang » dan yang, tan ying, tan yong
chang ha » chang mae

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: lang hyoung ((((yan liang) OR (yan guan))) OR (qian jun)) tan yang joon chang ha ;~.
• Adding a wildcard symbol may retrieve word variants: lang hyoung ((((yan liang) or (yan guan))) or (qian jun)) tan yang joon chang ha ;*.