Perhaps you should try some spelling variations:
rural communication » rural communications, oral communication, moral communication
information costs » information contents, information centers, information content
developing china » developing china's, development china, developing caring
4 developing » 3 developing
china africa » cpia africa, china asia
costs do » costs down, costs how, costs _
do rural » two rural, 2 rural, 4 rural
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien _ information costs do rural communication costs 4 developing china africa.*.