Perhaps you should try some spelling variations:
ghana china » china china, ghana ghana
china chung » china chang, china china, china chen
chung chuan » chen chuan
yan ghana » yan guan, yan zhang
chuan hua » chuang hui, chuan fa, chun hui
zhong tai » hong tan, hong hai, zhong zhi
wai yan » wang yan, wei yang

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: wai yan ghana china chung chuan hua ((zhong tai) OR ((hong OR long) tan)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wai yan ghana china chung chuan hua ((zhong tai) or ((hong OR long) tan)) ;~".
• Adding a wildcard symbol may retrieve word variants: wai yan ghana china chung chuan hua ((zhong tai) or ((hong OR long) tan)) ;*.