Perhaps you should try some spelling variations:
china step » china sleep, china stein, china shen
yuan kang » yuan wang, yuan chang, chan kang
china sea » china asean
wang yue » wong yue, wang hua, wang yan
wang wei » zhang wei, wang zhi
gong di » dong di, gong si, long did
kang a » kang ca, kang _, fang a

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

• Performing a fuzzy search may retrieve terms with similar spellings: yuan kang a ((china step) or (china sea)) gong di ((wang yue) or (wang wei)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan kang a ((china step) OR (china sea)) gong di ((wang yue) OR (wang wei)) ;.
• Adding a wildcard symbol may retrieve word variants: yuan kang a ((china step) or (china sea)) gong di ((wang yue) or (wang wei)) ;*.