Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
hyoung yan » kyoung yang, hyoung gun, kyoung yun
kang chen » chang chen, jane chen, kang han
yan yuan » yan guan, fang yuan, nan yan
yuan tan » huan t'an, yuan kang, yuan ting
tan yang » dan yang, tan ying, tan yong
hai » hadi, haji, hari

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 tan yang di ((kang chen) OR (dang hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: lang hyoung yan yuan tan yang di ((kang chen) or (dang hai)) ;*.