Perhaps you should try some spelling variations:
sharing gains » sharing savings, learning gains, securing gains
cost sharing » risk sharing, cost savings
done using » line using, move using
wong shiu » wong siu, cong shu, wong sau
ya a » a a, ye a, yu a
y a » y la
shin » skin, sein, thin

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: ((done using) OR (wang yan)) ((ya a) OR (y a)) cost sharing gains ((wong shiu) OR (song shin)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((done using) or (wang yan)) ((ya a) or (y a)) cost sharing gains ((wong shiu) OR (song shin)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((done using) or (wang yan)) ((ya a) or (y a)) cost sharing gains ((wong shiu) OR (song shin)) ;*.