Perhaps you should try some spelling variations:
information centers » information contents, information officers
face communication » voice communication, de communication, time communication
technologies vary » technologies art, technologies any, technologies varies
vary information » ary information, early information, party information
communication 20 » communication 2.0, communication 2, communication 10
20 developing » 2 developing, 10 developing, 24 developing
developing a » developing _
centers 2.1 » center 2.1, centers 2.2, centers 2.8
a afrique » l afrique, en afrique
2.1 face » 2.2 face, 2.3 face, 4.1 face
20 20 » 20 21, 20 22, 20 23

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

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