Perhaps you should try some spelling variations:
sample sharing » samples scoring, able sharing, sample chain
leaving china » living china, teaching china, leaving behind
rule sharing » file sharing, able sharing, false sharing
china sea » china asean
dong bin » dong sin, dong di, dann bin
et a » et al, et la

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

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