Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
zhong tai » hong tan, hong hai, zhong zhi
shang hai » shang kai, dang hai, chang ha
ka chuan » say chuan, hai chuan
tan sang » tan yang, tang tang, tan hong
wan yan » wang yan, nan yan, wai yan
ka chai » kim chai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan ((ka chuan) OR (ka chai)) tan sang minh ((zhong tai) OR (shang hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan ((ka chuan) OR (ka chai)) tan sang minh ((zhong tai) or (shang hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wan yan ((ka chuan) OR (ka chai)) tan sang minh ((zhong tai) or (shang hai)) ;*.