Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
separation using » operation using, separation among, separation und
et developpement » de developpement, le developpement, test development
developpement en » developpement et, developpement des, developpement de
du separation » _ separation, a separation, 2 separation
ideologie du » ideologie de, ideologie der, ideologie des
les crisis » las crisis, les crises, its crisis
using les » using less, using aes, using files
a et » a set, a net, a bet

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

• Adding a wildcard symbol may retrieve word variants: ideologie du separation using les crisis communication a et developpement en afrique.*.