Perhaps you should try some spelling variations:
active communication » reactive communication, proactive communication, actions communication
information centers » information contents, information officers
technologies based » technologies used, technology based, technologies a
based information » basic information, based innovation, land information
developing a » developing _
centers de » centers _, centres de, centers 10
de active » 3 active, 2 active, 1 active
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 based information centers de active communication costs _ developing a africa.*.