Perhaps you should try some spelling variations:
wang dong » wang yong, wang hong, wang yang
john song » john wong, john bonn, john ngosong
yang hua » wang hua, yang hui, ying hua
hua chen » jui chen, yu chen, a chen
chen yun » chen yu, chen yue, chen yiqun
yun john » ryan john, turn john, von john
song sau » wong sau, kong sar, song pae

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang dong) or (wang hyoung)) yang hua chen yun john song sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang dong) OR (wang hyoung)) yang hua chen yun john song sau ;*.