Perhaps you should try some spelling variations:
ghana china » china china, ghana ghana
china chung » china chang, china china, china chen
yan ghana » yan guan, yan zhang
zhong tai » hong hai, zhong zhi
chuan fa » chuan kao
chan fai » chan ngai, chan lau, can fail
wai yan » wang yan, wei yang
zhong » zlong
hong » long
tan » than

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