Perhaps you should try some spelling variations:
rural communication » rural communications, oral communication, moral communication
information centre » information centers, information contents
development case » development china
3.1 development » 2 development
technologies 4 » technologies _
4 information » 2 information, 1 information
case africa » cases africa, care africa, curse africa
centre new » century new, centre de, centre des
new rural » new real
costs 3.1 » costs 3.5, costs 4.1, costs 2.1

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information centre new rural communication costs 3.1 development case africa.*.