Perhaps you should try some spelling variations:
datos communication » data communication, actors communication, mass communication
technology change » technological change, technological changes
change formation » change information, phase formation, care formation
development east » development southeast, development 1
4 development » 2 development, 4 developing
formation et » formation des, formation _
east afrique » east africa, east african, en afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology change formation et de datos communication costs 4 development east afrique.*.