Perhaps you should try some spelling variations:
information channels » information exchanges, informal channels, information centers
face communication » voice communication, de communication, time communication
communication 3.4 » communication 3.3, communication 2.4, communication 3.2
technologies 4 » technologies _
4 information » 2 information, 1 information
developing l2 » developing _, developing a, developing e
3 developing » 3 development
channels 43 » channels 4.3, channels 4, channels 4.2
l2 afrique » l afrique, en afrique
43 face » 3 face, 2.3 face, 4.1 face
3.4 3 » 3.4 _, 3.4 a, 3.4 k

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information channels 43 face communication 3.4 3 developing l2 afrique.*.