Perhaps you should try some spelling variations:
actions communication » actors communication, active communication, activists communication
information costs » information contents, information centers, information content
communication 3.4 » communication 3.3, communication 2.4, communication 3.2
technologies 4 » technologies _
mental actions » legal actions, potential actions, remedial actions
4 information » 2 information, 1 information
development l » development li, development 1, development law
costs mental » costs meat, costs rent
l afrique » en afrique
3.4 2 » 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 costs mental actions communication 3.4 2 development l afrique.*.