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

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

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