Perhaps you should try some spelling variations:
risky communication » risk communication, risk communications, crisis communication
developpement de » developpement des, developpement durable
separation unit » separation und, separation using, generation unit
l developpement » le developpement, de developpement, et developpement
der separation » order separation, air separation, ree separation
ideologie der » ideologie und, typologie der
less risky » ems risky, loss risk
de afrique » de l'afrique, en afrique, l afrique
unit less » unit tests, unit test
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 unit less risky communication a l developpement de afrique.*.