Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
hyoung yan » kyoung yang, hyoung gun, kyoung yun
yang jie » yang jin, yang di, yang jui
yang jun » yang jui, pang jun, yang jin
yan hua » tan hua, ya hua, wang hua
hua ren » hua chen
yan jiu » yang jin, pang jiu

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 hua ren ((((yan jiu) OR (yang jie))) OR (yang jun)) cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: lang hyoung yan hua ren ((((yan jiu) or (yang jie))) or (yang jun)) cong shu ;*.