Perhaps you should try some spelling variations:
kang minh » kang minah, sang minh, anh minh
wang yao » wang yan, yang yao, wang tao
gang yao » yang yao, wang yan, ganga ya
dai kang » xi kang
wang hui » wang zhi, wang he
wang wei » zhang wei, wang zhi
yang yi » yang di, yang xi, yang jui
yi dai » yi lai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yao) or (gang yao)) yang yi dai kang minh ((((wang hui) OR (wang hua))) or (wang wei)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yao) OR (gang yao)) yang yi dai kang minh ((((wang hui) OR (wang hua))) OR (wang wei)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yao) or (gang yao)) yang yi dai kang minh ((((wang hui) OR (wang hua))) or (wang wei)) ;*".