Perhaps you should try some spelling variations:
costs savings » cost savings, postal savings
cost ratings » cost savings, bond ratings, risk ratings
kunst oder » kunst der, kunst des
risk bring » risk bearing, risk during, risk using
bring what » doing what, brief what, going what
wing yan » wang yan, wing ian, wing tan
kann » ann

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: wing yan ((kunst oder) OR (kann die)) ((cost ratings) OR (costs savings)) risk bring what ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing yan ((kunst oder) or (kann die)) ((cost ratings) OR (costs savings)) risk bring what ;~".
• Adding a wildcard symbol may retrieve word variants: wing yan ((kunst oder) or (kann die)) ((cost ratings) OR (costs savings)) risk bring what ;*.