Perhaps you should try some spelling variations:
information centers » information contents, information officers
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
technologies 4 » technologies _
4 information » 2 information, 1 information
13 developing » 1.3 developing, 3 developing, 1 developing
developing eq » developing e, developing egg, developing _
centers 10 » centers _, center 1, center 12
eq africa » em africa, eu africa, 1 africa
cost 13 » cost 12, cost 15, cost e3
10 de » 10 die, 10 der, 10 des

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information centers 10 de communication cost 13 developing eq africa.*.