Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
separation using » operation using, separation among, separation und
l developpement » le developpement, de developpement, et developpement
der separation » order separation, air separation, ree separation
ideologie der » ideologie und, typologie der
less crisis » las crisis
des afrique » en afrique, de l'afrique
a l » a la

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

• Adding a wildcard symbol may retrieve word variants: ideologie der separation using less crisis communication a l developpement des afrique.*.