Perhaps you should try some spelling variations:
sharing food » sharing hold, securing food, sharing covid
zhang yan » zhang fan, zhang jian, wang yan
xi zhang » li zhang, xiao zhang, bin zhang
dan data » dan dana, dn data, fan data
can data » fan data, chain data, ocean data
can tata » can take, can tax
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: xi zhang yan ((((dan data) OR (can data))) OR (can tata)) sharing food kong (sar OR saur) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "xi zhang yan ((((dan data) OR (can data))) or (can tata)) sharing food kong (sar or saur) ;~".
• Adding a wildcard symbol may retrieve word variants: xi zhang yan ((((dan data) OR (can data))) or (can tata)) sharing food kong (sar or saur) ;*.