Perhaps you should try some spelling variations:
guinea communications » business communications, online communications, data communications
communications costs » communication costs, communications _
information context » information content, information contents, information centers
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
4 developing » 3 developing
developing a » developing _
context 1 » context 3, context 2
1 guinea » _ guinea, 3.1 guinea, a guinean
a africa » 1 africa, can africa, em africa
costs 4 » costs _, costs a, costs 4.2

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 context 1 guinea communications costs 4 developing a africa.*.