Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
iot sharing » co sharing, eight sharing, risk sharing
wang yang » wang yan, wang liang, wang yanling
yang ying » yang yang, yang jing, huang ying
ying end » big end
best » west
cong » congo, long, hong

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang ying end ((iot sharing) OR (cost sharing)) best cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang ying end ((iot sharing) OR (cost sharing)) best cong shu ;*.