Perhaps you should try some spelling variations:
wang yidan » wang yan
kang minh » kang minah, sang minh, anh minh
wang tan » wang yan, wang ban, wang dan
yang jie » yang jin, yang di, yang jui
pang jun » yang jui
yi kang » xi kang, yi gang, yi yang
long du » long do, long run, long did
long d » long do, long _, long 2

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

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