Perhaps you should try some spelling variations:
actors communication » actions communication, active communication, networks communication
technologies situ » technologies bit, technologies status, technologies ser
developpement en » developpement et, developpement des, developpement de
formation phase » formation chapter
situ formation » site information, skill formation, elite formation
der actors » key actors, new actors, aet actors

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

• Adding a wildcard symbol may retrieve word variants: technologies situ formation phase der actors communication costs _ developpement en afrique.*.