Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
wang liang » wang yang
liang yang » liang ying, wang yang, yang yang
best tong » best thing, best tool, est ton
yang der » gang der, yang dean, klang der
der cost » oder cost, user cost, debt cost
last » east, past, list

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 liang yang der cost sharing ((best tong) OR (last thing)) shui ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang yang der cost sharing ((best tong) or (last thing)) shui ;*.