Perhaps you should try some spelling variations:
juan rene » juan meng, juan rana
sang minh » kang minah, anh minh, tang min
song ming » song bing, gong min, jong min
song min » gong min, jong min, song jin
cong van » congo can, duong van, cong sun
yi juan » y juan
yan yi » yang yi, tan yi, yan zi
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 yi juan rene ((((sang minh) OR (song min))) OR (song ming)) cong van ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yi juan rene ((((sang minh) OR (song min))) or (song ming)) cong van ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan yi juan rene ((((sang minh) OR (song min))) or (song ming)) cong van ;*.