Perhaps you should try some spelling variations:
juan rene » juan meng, juan rana
yuan kang » yuan wang, yuan chang, chan kang
sang minh » kang minah, anh minh, song min
wing yan » wang yan, wing ian, wing tan
cong sun » cong shu, cong van, wing sun
y juan » _ juan, v juan
yan y » yang y, yan _, yan 4

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: wing yan y juan rene ((yuan kang) OR (sang minh)) cong sun ;~.
• Adding a wildcard symbol may retrieve word variants: wing yan y juan rene ((yuan kang) or (sang minh)) cong sun ;*.