Perhaps you should try some spelling variations:
communication medium » communication mediums, communication media, communications media
de communication » mobile communication, online communication
developpement de » developpement des, developpement durable
technologies co » technologies _, technologies 4, technologies 2
information 4.3 » information 4.2, information 4.3.3, information 1.2
co information » do information, 2 information, 1 information
de afrique » de l'afrique, en afrique, l afrique
4.3 die » 3.3 die, 2.3 die
die de » die die, die der, die den

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

• Adding a wildcard symbol may retrieve word variants: technologies co information 4.3 die de communication medium _ developpement de afrique.*.