Perhaps you should try some spelling variations:
personals communication » personal communication, personal communications, personal communicator
de developpement » sme development
developpement de » developpement des, developpement durable
communication 1 » communication _, communication a, communication 3
ideologie der » ideologie und, typologie der
der variation » de variation, does variation, die variation
des personals » des personnes
1 de » 1 die, 1 der, _ de

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

• Adding a wildcard symbol may retrieve word variants: ideologie der variation _ des personals communication 1 de developpement de l'afrique.*.