Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
juan rene » juan meng, juan rana
wing yan » wang yan, wing ian, wing tan
yan minh » tuan minh, yang mind, yuan ming
yi juan » y juan
long du » long d, long do, long run
yan yi » yang yi, tan yi, yan zi

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 yi juan rene ((yan minh) OR (sang minh)) long du ;~.
• Adding a wildcard symbol may retrieve word variants: wing yan yi juan rene ((yan minh) or (sang minh)) long du ;*.