Perhaps you should try some spelling variations:
information century » information centers, information centre, information center
rural communication » rural communications, oral communication, moral communication
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
developing av » developing a, developing ai, developing amp
3 developing » 3 development
new rural » new real
av africa » v africa, iv africa, can africa
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information century new rural communication costs 3 developing av africa.*.