Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
hyoung yan » kyoung yang, hyoung gun, kyoung yun
tan cheng » tang zheng, yuan cheng, tan hong
yan guan » gan guan, yan yuan, yang guang
tan chen » ta chen, jane chen, jean chen
yun dang » yun jang, duc dang, yun song
hai » hadi, haji, hari

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: lang hyoung yan guan ((tan chen) OR (tan cheng)) yun dang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang hyoung yan guan ((tan chen) OR (tan cheng)) yun dang hai ;*".