Perhaps you should try some spelling variations:
yan wang » yuan wang, yang yang, qian wang
yan guan » gan guan, yan yuan, yang guang
tuan hua » tan hua, yuan hui
hui yang » hui ying, du yang, h yang
yang kim » yong kim, kang kim, hyung kim
kim song » kim young, kim eung
tuan vu » thanh vu
song du » long du, song yun

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan wang) OR (yan guan)) ((tuan hua) OR (tuan vu)) hui yang kim song du ;~.
• Adding a wildcard symbol may retrieve word variants: ((yan wang) or (yan guan)) ((tuan hua) or (tuan vu)) hui yang kim song du ;*.