Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
4 communications » 14 communications, 4 communication, 2 communications
communications a » communications _, communications law, communications media
developpement en » developpement et, developpement des, developpement de
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
modelling 4 » modelling _, modeling 4

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation _ modelling 4 communications a leur developpement en afrique.*.