Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
minh long » minh cong, vinh long
wang dan » wang yan, wang ban, wang yidan
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang di, yang xi
xi sang » xi kang, kil sang, xi zhang
long du » long d, long do, long run

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang dan ((yang jin) or (((yang jui) or (pang jun)))) xi sang minh long du ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang dan ((yang jin) OR (((yang jui) OR (pang jun)))) xi sang minh long du ;*.