Perhaps you should try some spelling variations:
information century » information centers, information centre, information center
face communication » voice communication, de communication, time communication
communication 10 » communication 1, communication _, communication a
20 developing » 2 developing, 10 developing, 24 developing
developing a » developing _
century 2.2 » century 2.1, century 3.1
a afrique » l afrique, en afrique
2.2 face » 12.2 face, 2.3 face, 3.2 face
10 20 » 100 20, 19 20, 17 20

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information century 2.2 face communication 10 20 developing a afrique.*.