Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
does developpement » de developpement, des developpements, does development
informing public » reforming public, informal public, informed public
developpement de » developpement des, developpement durable
de afrique » de l'afrique, en afrique, l afrique
public 2 » public _, public 4
2 crisis » 1 crisis, 3 crisis, 4 crisis
a does » 2 does, 4 does, 1 does

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

• Adding a wildcard symbol may retrieve word variants: technologies _ informing public 2 crisis communication a does developpement de afrique.*.