Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
separation among » separation using, starvation among, cooperation among
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
air separation » a separation, after separation, first separation
typologie air » typologie wird, typologie der, typologie am
its crisis » aids crisis, its critics, las crisis
among its » among idps, among ers, among idp
a du » a d, a de, a u

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

• Adding a wildcard symbol may retrieve word variants: typologie air separation among its crisis communication a du developpement en afrique.*.