Perhaps you should try some spelling variations:
actors communication » actions communication, active communication, networks communication
information case » information based, information can, information costs
developpement en » developpement et, developpement des, developpement de
4 developpement » de developpement, le developpement, et developpement
does actors » msmes actors
case does » care does, case des, cash does
costs 4 » costs _, costs a, costs 4.2

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies _ information case does actors communication costs 4 developpement en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information case does actors communication costs 4 developpement en afrique.*.