Perhaps you should try some spelling variations:
actors communication » actions communication, active communication, networks communication
technologies postal » technologies past, technologies boosted, technologies program
postal information » total information, hospital information, partial information
information costs » information contents, information centers, information content
communication 4.3 » communication 3.3, communication 4.1, communication 3
development l » development li, development 1, development law
de actors » de actor, key actors, new actors
l afrique » en afrique
costs de » costs _, costs 4, costs a
4.3 a » 4.3 _, 2.3 a, 4.1 a

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

• Adding a wildcard symbol may retrieve word variants: technologies postal information costs de actors communication 4.3 a development l afrique.*.