Perhaps you should try some spelling variations:
juan meng » juan rene, jui meng, yuan ming
sang minh » kang minah, anh minh, song ming
yan minh » tuan minh, yang mind, yuan ming
song min » song ming, gong min, jong min
cong sun » cong shu, cong van, wing sun
y juan » _ juan, v juan
yan y » yang y, yan _, yan 4
wang » wing, wan, lang

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 yan y juan meng ((yan minh) OR (((sang minh) OR (song min)))) cong sun ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan y juan meng ((yan minh) or (((sang minh) OR (song min)))) cong sun ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan y juan meng ((yan minh) or (((sang minh) OR (song min)))) cong sun ;*.