Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
minor irrigation » micro irrigation, minor variation, runoff irrigation
developpement en » developpement et, developpement des, developpement de
typologie minor » typologie eines, typologie einiger
3 developpement » de developpement, le developpement, et developpement
les crisis » las crisis, les crises, its crisis
media 3 » media _, media 1, media 4

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

• Adding a wildcard symbol may retrieve word variants: typologie minor irrigation _ les crisis communication media 3 developpement en afrique.*.