Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
de communications » de communication, do communications, mce communications
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
developing a » developing _
centers 3.1 » center 3.1, centers 3.3, centers 3.8
a africa » 1 africa, can africa, em africa
3.1 de » 3.1 die, 3.1 der, 3.1 def

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

• Adding a wildcard symbol may retrieve word variants: technologies a information centers 3.1 de communications costs _ developing a africa.*.