Perhaps you should try some spelling variations:
communication 3.2 » communication 3.3, communication 3.4, communication 2
la communication » data communication, data communications
user development » users development, use development, users developments
technologies vs » technologies v, technologies _, technologies 4
development li » development lid, development lie, development lin
channels 1.7 » channels 3.7, channels 4.7, channels 7.7
vs informal » _ informal, 3 informal
li afrique » l afrique, en afrique
3.2 user » 3.1 user, 3.2 use, 3.3 user
1.7 la » 1.4.7 la, 1.7 hila

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

• Adding a wildcard symbol may retrieve word variants: technologies vs informal channels 1.7 la communication 3.2 user development li afrique.*.