Perhaps you should try some spelling variations:
information centers » information contents, information officers
communication cost » communication costs, communication costa, communications costs
et communication » et communicatione, get communication, debt communication
7.4 developing » 5.4 developing, 6.4 developing, 1.4 developing
developing a » developing _
centers 13 » centers 10, centers 3, centers 3.3
cost 7.4 » costs 7.4, cost 2.4, cost 3.4
a africa » 1 africa, can africa, em africa
13 et » 12 et

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information centers 13 et communication cost 7.4 developing a africa.*.