Perhaps you should try some spelling variations:
cost saving » cost savings, costs savings, cost sharing
saving rate » savings rate, savings rates
wang liang » wang yang
rate among » rates among, trade among, water among
among hiv » among heis, among di, among hr
yang jui » yang judy, yang di, yang xi

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 jui) OR (wang hua)) cost saving rate among hiv ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang ((yang jui) or (wang hua)) cost saving rate among hiv ;*.