Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
leur developpement » le developpement, deux developpements, de developpement
developpement de » developpement des, developpement durable
technologies 1 » technologies _, technologies 4, technologies 2
information a » information age, information about
de afrique » de l'afrique, en afrique, l afrique
de crisis » debt crisis, pre crisis, age crisis
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information a de crisis communication a leur developpement de afrique.*.