Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information center » information centers, information centre, information content
10 communications » 10 communication, 14 communications, 2 communications
developing intra » developing data, developing ict, developing interbank
technologies 2 » technologies _, technologies 4
4.3 developing » 3.3 developing, 1.3 developing, 7.3 developing
intra africa » intra african, internal africa, central africa
center 12 » center 1, center 2, center 12.6
costs 4.3 » costs 4.2, costs 4.4, costs 2.3
12 10 » 12 15, 12 14, 12 13

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information center 12 10 communications costs 4.3 developing intra africa.*.