Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
gain yang » dan yang, daun yang, tan yang
yan guan » gan guan, yan yuan, yang guang
yang jin » yang jie, yang jun, ying jin
jin kang » jin chang, jin kyung, jing fang
kang hay » eang hay, kang han, dang hai
yan kun » yan yuan

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 guan) OR (yan kun)) gain yang jin kang hay ;~.
• Adding a wildcard symbol may retrieve word variants: lang hyoung ((yan guan) or (yan kun)) gain yang jin kang hay ;*.