Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing food » sharing hold, securing food, sharing covid
yang iran » yang dean, yang fan
iran cost » urban cost, iran case, can cost
yan yang » yang yang, yao yang, dan yang
wan yan » wang yan, nan yan, wai yan
kong » long, pong, ong

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: wan yan yang iran cost sharing food (kong OR hong) (sar OR saur) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan yang iran cost sharing food (kong OR hong) (sar or saur) ;~".
• Adding a wildcard symbol may retrieve word variants: wan yan yang iran cost sharing food (kong OR hong) (sar or saur) ;*.