Perhaps you should try some spelling variations:
savings cross » savings groups, savings access, savings group
savings risk » ratings risk, savings rate, savings bank
liang ying » liang liying, huang ying, jiang yajing
zhang ying » zhang ming, zhang jing, zhang ping
jin cost » can cost, die cost, run cost
among 15 » among _, among eu

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 ying) OR (zhang ying)) jin cost ((savings risk) OR (savings cross)) among 15 ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((liang ying) OR (zhang ying)) jin cost ((savings risk) or (savings cross)) among 15 ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((liang ying) OR (zhang ying)) jin cost ((savings risk) or (savings cross)) among 15 ;*.