Perhaps you should try some spelling variations:
kang minh » kang minah, sang minh, anh minh
yang yang » wang yang, wang yan
yan yang » yao yang, dan yang, yan wang
tan yang » dan yang, tan ying, tan yong
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: wing ((((yan yang) or (tan yang))) or (yang yang)) jia yi kang minh ((long du) OR (long d)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing ((((yan yang) OR (tan yang))) OR (yang yang)) jia yi kang minh ((long du) OR (long d)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing ((((yan yang) or (tan yang))) or (yang yang)) jia yi kang minh ((long du) OR (long d)) ;*".