Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
iot sharing » cost sharing, co sharing, eight sharing
wang yang » wang yan, wang liang
risk cong » risk coping, risk among, risk along
big bend » big end, big brand, big bang
big head » big dead, big leap, big red

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: ((wang yang) OR (wang yanling)) ((big bend) OR (big head)) iot sharing risk cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (wang yanling)) ((big bend) or (big head)) iot sharing risk cong shu ;*.