Perhaps you should try some spelling variations:
communication medias » communication media, communication mediums, communications media
des developpements » deux developpements, de developpement, et developpements
developpements des » developpement des, developpements de, developpement de
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
technologies 4 » technologies _
4 information » 2 information, 1 information
des afrique » en afrique, de l'afrique
medias des » medias res, medias de, medias les
3.2 mas » 3.2 mass, 3.2 man, 3.2 main
mas 4.1 » cas 4.1, gas 4.1, mas 5.1

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information 3.2 mas 4.1 communication medias des developpements des afrique.*.