Perhaps you should try some spelling variations:
hyoung yan » kyoung yang, hyoung gun, kyoung yun
yan guan » gan guan, yan yuan, yang guang
tan chen » tan cheng, ta chen, jane chen
yu cheng » yu chen, _ cheng
yun dang » yun jang, duc dang, yun song
wang » wing, wan, lang
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: wang hyoung yan guan ((tan chen) or (yu cheng)) yun dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang hyoung yan guan ((tan chen) OR (yu cheng)) yun dang hai ;*.