Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
minor irrigation » micro irrigation, minor variation, runoff irrigation
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
typologie minor » typologie eines, typologie einiger
irrigation des » irrigation les, irrigation dams, irrigation fees
de crisis » debt crisis, pre crisis, age crisis
des de » des dem, des der, des des
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: typologie minor irrigation des de crisis communication a de developpement en afrique.*.