Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing our » shaping our, sharpening our
iran cost » urban cost, iran case, can cost
yi zhang » xi zhang, bin zhang, jia zhang
yi chang » ii chang, ying chang, jin chang
li zhang » _ zhang
yan iran » year iran, law iran, yan clan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((yi zhang) OR (yi chang))) or (li zhang)) yan iran cost sharing our pong (sar or saur) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yi zhang) OR (yi chang))) OR (li zhang)) yan iran cost sharing our pong (sar OR saur) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yi zhang) OR (yi chang))) or (li zhang)) yan iran cost sharing our pong (sar or saur) ;*".