Perhaps you should try some spelling variations:
china's costs » china's cotton, china's coal, china's core
costs longer » costs along, costs linked, does longer
can china's » china china's
using shift » using short, using soft, single shift
life using » life during
wang yang » wang yan, wang liang, wang yanling
dong di » dong sin

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yang) or (dong di)) can china's costs longer life using shift ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (dong di)) can china's costs longer life using shift ;*.