Perhaps you should try some spelling variations:
guinea communications » business communications, online communications, data communications
communications costs » communication costs, communications _
information centers » information contents, information officers
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
10.6 developing » 10.3 developing, 10.4 developing, 10 developing
developing a » developing _
costs 10.6 » costs 11.1, costs 11.4, costs 11.7
centers a » centers _, center a, enters a
a guinea » a guinean, _ guinea, aus guinea
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information centers a guinea communications costs 10.6 developing a africa.*.