Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
hyoung gun » young eun
tan cheng » tang zheng, yuan cheng, tan hong
jang hadi » dang hai
gun guan » gan guan, gui guan, quan guan
tan chen » ta chen, jane chen, jean chen
yun jang » suk jang, yun song

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 gun guan ((tan chen) or (tan cheng)) yun jang hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang hyoung gun guan ((tan chen) OR (tan cheng)) yun jang hadi ;*.