Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
dem communications » do communications, les communications, aided communications
technologies 2 » technologies _, technologies 4
developing ict » developing east, developing city, developing data
15 developing » 1 developing, 5 developing, 10 developing
centers 2.3 » center 2.3, centers 2.2, centers 2.8
ict africa » art africa, joint africa
costs 15 » costs 5, costs 1, costs 15.3
2.3 dem » 2.3 der, 2.3 de, 2.3 den

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information centers 2.3 dem communications costs 15 developing ict africa.*.