Perhaps you should try some spelling variations:
personal communication » interpersonal communication
la developpement » le developpement, de developpement, et developpement
developpement de » developpement des, developpement durable
ideologie der » ideologie und, typologie der
der variation » de variation, does variation, die variation
variation 4 » variations 4, variation _, variation 6
2 personal » 1 personal, 4 personal
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: ideologie der variation 4 2 personal communication a la developpement de afrique.*.