Perhaps you should try some spelling variations:
juan rene » juan meng, juan rana
sang minh » kang minah, anh minh, song min
wang tan » wang yan, wang ban, wang dan
jong min » gong min, song min, song ming
cong sun » cong shu, cong van, wing sun
yi juan » y juan
tan yi » tang yi, tan li, tan ying

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 tan yi juan rene ((sang minh) OR (jong min)) cong sun ;~.
• Adding a wildcard symbol may retrieve word variants: wang tan yi juan rene ((sang minh) or (jong min)) cong sun ;*.