Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
kang minh » kang minah, anh minh, kan min
yan ying » fan ying, ran ying, tan ying
ying jin » yang jin, jing ji, yang jie
wai yan » wang yan, wei yang
jin yi » lin yi, jin xi, qin yi
cong » congo, long, hong

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

• Performing a fuzzy search may retrieve terms with similar spellings: wai yan ying jin yi ((kang minh) or (sang minh)) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wai yan ying jin yi ((kang minh) OR (sang minh)) cong shu ;*.