Perhaps you should try some spelling variations:
sharing food » sharing hold, securing food, sharing covid
urban cost » urban costs, urban core, urban case
iran cost » can cost, run cost, than cost
iran case » urban case
yan yang » yang yang, yao yang, dan yang
wan yan » wang yan, nan yan, wai yan
kong » long, hong, pong

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