Perhaps you should try some spelling variations:
sang minh » anh minh, song min, song ming
wang ban » wang yan, wang dan, wang yang
ban yang » dan yang, tan yang, wang yang
yang qi » yang di, yang xi, yang yi
long do » long d, longer do, long ago
long du » long d, long run, long did
qi yi » qin yi, li yi

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ban yang qi yi ((kang minah) OR (sang minh)) ((long do) or (long du)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ban yang qi yi ((kang minah) OR (sang minh)) ((long do) OR (long du)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ban yang qi yi ((kang minah) OR (sang minh)) ((long do) or (long du)) ;*".