Perhaps you should try some spelling variations:
active communication » reactive communication, proactive communication, actions communication
information centers » information contents, information officers
communication 2.1 » communication 22.1, communications 2.1, communication 2.4
technologies any » technologies dans, technologies a, technologies art
any information » ary information, key information, pay information
20 developing » 2 developing, 10 developing, 24 developing
developing a » developing _
centers 6.1 » center 2.1, century 6.1, center 3.1
6.1 active » 1.1 active, 3.1 active, 8.6.1 active
a afrique » l afrique, en afrique
2.1 20 » 4.1 20, 5.1 20

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

• Adding a wildcard symbol may retrieve word variants: technologies any information centers 6.1 active communication 2.1 20 developing a afrique.*.