Perhaps you should try some spelling variations:
leaving china » living china, teaching china, leaving behind
file sharing » risk sharing
rule sharing » able sharing, false sharing, value sharing
china sea » china asean
dong da » dong di, dong cao, dong hua
da da » a da
da a » das a, daf a, dam a

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong da da a ((rule sharing) or (file sharing)) leaving china sea ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong da da a ((rule sharing) OR (file sharing)) leaving china sea ;.
• Adding a wildcard symbol may retrieve word variants: dong da da a ((rule sharing) or (file sharing)) leaving china sea ;*.