Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
die developpement » de developpement, le developpement, du developpement
minor irrigation » micro irrigation, minor variation, runoff irrigation
developpement en » developpement et, developpement des, developpement de
typologie minor » typologie eines, typologie einiger
irrigation des » irrigation les, irrigation dams, irrigation fees
a die » 2 die, 3 die, _ die

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

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