Perhaps you should try some spelling variations:
wan kyoung » wang hyoung, han kyung, hwang byoung
kang young » wang hyoung
hua rents » hua ren
rents yan » ren yan
than dang » than daem, than data, than days
dang hadi » dang hai
yang hua » wang hua, yang hui, ying hua
yan than » van thanh, yan zhang, yan clan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wan kyoung) or (kang young)) yang hua rents yan than dang hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wan kyoung) OR (kang young)) yang hua rents yan than dang hadi ;*.