Perhaps you should try some spelling variations:
zhang ying » zhang ming, zhang jing, zhang ping
yang yang » wang yang, wang yan
mun young » ju young, cyn young
yun young » ju young
john wong » john song, john bonn
wong shin » song shin, wong shiu, wong chun
wang li » wang lei, wang lin, tang li

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: zhang ying ((yang yang) OR (wang li)) ((mun young) OR (yun young)) john wong shin ;~.
• Adding a wildcard symbol may retrieve word variants: zhang ying ((yang yang) or (wang li)) ((mun young) or (yun young)) john wong shin ;*.