Perhaps you should try some spelling variations:
lang hyoung » kang young, hwang byoung
yang guang » yang yang, yang liang
dang hadi » dang hai
yan guan » gan guan, yan yuan, yihan guan
tan chen » tan cheng, ta chen, jane chen
chen yun » chen yu, chen yue, chen yiqun
yun dang » yun jang, duc dang, yun song

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) OR (wang hyoung)) ((yan guan) OR (yang guang)) tan chen yun dang hadi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((lang hyoung) or (wang hyoung)) ((yan guan) OR (yang guang)) tan chen yun dang hadi ;~".
• Adding a wildcard symbol may retrieve word variants: ((lang hyoung) or (wang hyoung)) ((yan guan) OR (yang guang)) tan chen yun dang hadi ;*.