Perhaps you should try some spelling variations:
lang hyoung » wang hyoung, kang young, hwang byoung
quan guan » gan guan, quan guo, yan guan
dang hari » dang hai
gun guan » gan guan, gui guan, tuo guan
fan xing » fan ying, fan xibo, tan xin
xing mu » xing hui
mu dang » duc dang

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) or (quan guan)) fan xing mu dang hari ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang hyoung ((gun guan) OR (quan guan)) fan xing mu dang hari ;*.