Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
john song » john bonn, john ngosong
john wong » john bonn
minh wang » minh cong, ping wang
wang hui » wang hua, wang zhi, wang wei
yang li » yang lin, yang di, yang xi
li song » li cong, li rong, kim song

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 yang yang li ((li song) OR (((john song) OR (john wong)))) minh wang hui ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang yang li ((li song) or (((john song) or (john wong)))) minh wang hui ;*.