Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
leur developpement » le developpement, deux developpements, de developpement
developpement du » developpement de, developpement des, developpement et
technologies 4 » technologies _
4 information » 2 information, 1 information
des crisis » de crisis, des crises, debt crisis
du afrique » en afrique, l afrique, de l'afrique
about des » about nodes, about dead, about debt

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information about des crisis communication a leur developpement du afrique.*.