Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing food » sharing hold, securing food, sharing covid
zhang man » zhang fan, zhang yan, zhang han
than cost » than most, than just, can cost
li zhang » _ zhang
man than » man han, man thing, van thanh
kong » hong

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: li zhang man than cost sharing food (((kong OR long) OR ong) OR pong) (sar OR saur) ;~.
• Adding a wildcard symbol may retrieve word variants: li zhang man than cost sharing food (((kong or long) or ong) or pong) (sar or saur) ;*.