Perhaps you should try some spelling variations:
radio communication » crisis communication, data communication
data developpement » data development, de developpement, et developpement
developpement du » developpement de, developpement des, developpement et
technologies a » technologies _, technologies 4, technologies 2
information 13 » information 1.3, information 3, information 1
a information » 2 information, 1 information
mode radio » more radio
du afrique » en afrique, l afrique, de l'afrique
13 mode » 13 more, 3 mode

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

• Adding a wildcard symbol may retrieve word variants: technologies a information 13 mode radio communication media data developpement du afrique.*.