Perhaps you should try some spelling variations:
savings rate » savings rates
liang liying » jiang liping, liang lilin, liang ying
liang yang » liang ying, wang yang, yang yang
rate among » rates among, trade among, water among
among who » along who, among hr, wrong who
der cost » oder cost, user cost, debt cost

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((liang yang) or (liang liying)) der cost savings rate among who ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((liang yang) OR (liang liying)) der cost savings rate among who ;.
• Adding a wildcard symbol may retrieve word variants: wang ((liang yang) or (liang liying)) der cost savings rate among who ;*.