Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
formula kong » formula dodgy, formula using, formula how
iran cost » urban cost, iran case, can cost
gang yan » wang yan, gang yao, wang yang
yan iran » year iran, law iran, yan clan
yi gang » ii gang, i gang, li gang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: yi gang yan iran cost sharing formula kong (sar OR saur) ;~.
• Adding a wildcard symbol may retrieve word variants: yi gang yan iran cost sharing formula kong (sar or saur) ;*.