Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
hyoung yan » kyoung yang, hyoung gun, kyoung yun
gain yang » dan yang, daun yang, tan yang
yan yuan » yan guan, fang yuan, nan yan
yang hai » dang hai, yang hui, shang hai
yi yang » yin yang, yi gang, yu yang

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 yuan ((gain yang) OR (du yang)) yi yang hai ;~.
• Adding a wildcard symbol may retrieve word variants: lang hyoung yan yuan ((gain yang) or (du yang)) yi yang hai ;*.