Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
information centers » information contents, information officers
12.7 developing » 12.4 developing, 12.2 developing, 2.2 developing
technologies 2 » technologies _, technologies 4
developing eq » developing e, developing egg, developing _
costs 12.7 » costs 11.7, costs 12.3, costs 12.4
eq africa » em africa, eu africa, 1 africa

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 _ mobile communications costs 12.7 developing eq africa.*.