Perhaps you should try some spelling variations:
savings cross » savings groups, savings access, savings group
savings risk » ratings risk, savings rate, savings bank
wang liang » wang yang
liang yang » liang ying, wang yang, yang yang
debt cost » debt cash
among who » along who, among hr, wrong who
der cost » oder cost, user cost, diet cost

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) OR (debt cost)) ((savings risk) OR (savings cross)) among who ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang yang ((der cost) or (debt cost)) ((savings risk) OR (savings cross)) among who ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang yang ((der cost) or (debt cost)) ((savings risk) OR (savings cross)) among who ;*.