Perhaps you should try some spelling variations:
wang yidan » wang yan
kang minh » kang minah, anh minh, kan min
sang minh » kang minah, anh minh, song min
wang ban » wang yan, wang dan, wang yang
pang jun » yang jui
yang jie » yang jin, yang di, yang jui
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 ban) or (wang yidan)) ((yang jie) or (pang jun)) yi ((kang minh) OR (sang minh)) long du ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang ban) OR (wang yidan)) ((yang jie) OR (pang jun)) yi ((kang minh) OR (sang minh)) long du ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang ban) or (wang yidan)) ((yang jie) or (pang jun)) yi ((kang minh) OR (sang minh)) long du ;*".