Perhaps you should try some spelling variations:
hwang byoung » wang hyoung, kang young
wang kyoung » wang hyoung, wang yong, kang young
wang liang » wang yang
chen yang » chen rong
yang john » young john, king john, yang jin
john wong » john song, john bonn
wong sau » wong sam, wong siu, wong shiu
yang yu » yang yue, yang yun, yang yi
yu chen » yu cheng, yi chen, yulu chen

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: ((((wang kyoung) OR (hwang byoung))) OR (wang liang)) yang yu chen yang john wong sau ;~.
• Adding a wildcard symbol may retrieve word variants: ((((wang kyoung) or (hwang byoung))) or (wang liang)) yang yu chen yang john wong sau ;*.