Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
communications costs » communication costs, communications _
information centre » information centers, information contents
development east » development southeast, development 1
1.3 development » 2.3 development, 3.3 development, 1 development
technologies 2 » technologies _, technologies 4
east africa » west africa
costs 1.3 » costs 12.3, costs 14.3, costs 15.3
centre 2 » centre 20, centre _, centre a
2 rural » a rural

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 2 rural communications costs 1.3 development east africa.*.