Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
der developpement » de developpement, des developpements, leur developpement
communication 2 » communication _, communication a, communication 3
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
public 4 » public _, public 2
4 crisis » 1 crisis, 3 crisis, 19 crisis
2 der » _ der

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

• Adding a wildcard symbol may retrieve word variants: technologies _ reforming public 4 crisis communication 2 der developpement l afrique.*.