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
sein das » sein des, sein de, sein du
sin da » bin da, sind das
dong » doing, long, done

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong ((sin da) OR (sein das)) a ((rule sharing) or (file sharing)) leaving china sea ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((sin da) OR (sein das)) a ((rule sharing) OR (file sharing)) leaving china sea ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((sin da) OR (sein das)) a ((rule sharing) or (file sharing)) leaving china sea ;".
• Adding a wildcard symbol may retrieve word variants: dong ((sin da) OR (sein das)) a ((rule sharing) or (file sharing)) leaving china sea ;*.