Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing risk » sharing best, during risk
wang zhang » wang zheng, wang luhang, zhang zhang
zhang fang » zhang fan, zhang zhang, zhang yan
risk cong » risk coping, risk among, risk along
end cost » end close, land cost, end iot
big end » big bend, big dead, big head

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 zhang) OR (zhang fang)) big end cost sharing risk cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang zhang) or (zhang fang)) big end cost sharing risk cong shu ;*.