Perhaps you should try some spelling variations:
la communication » data communication, data communications
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
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: typologie der variation _ per la communication a et developpement de l'afrique.*.