Perhaps you should try some spelling variations:
rural communication » rural communications, oral communication, moral communication
information centre » information centers, information contents
developing east » development east, developing a, developing asia
technologies 2 » technologies _, technologies 4
4.3 developing » 3.3 developing, 1.3 developing, 7.3 developing
east africa » west africa
centre des » centre de, centrale des, centres de
des rural » do rural, has rural
costs 4.3 » costs 4.2, costs 4.4, costs 2.3

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information centre des rural communication costs 4.3 developing east africa.*.