Perhaps you should try some spelling variations:
oral communication » personal communication
due developpement » de developpement, du developpement, le developpement
communication 3 » communication _, communication a
developpement l » developpement il, developpement la, developpement de
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
l afrique » en afrique
6 did » 6 die, 7 did, 3 did
_ did » _ die
3 due » 3 die, _ due, 1 due

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

• If you are trying to use Boolean operators, they must be ALL CAPS: typologie der variation ((6 did) OR (_ did)) oral communication 3 due developpement l afrique.~.
• Adding a wildcard symbol may retrieve word variants: typologie der variation ((6 did) or (_ did)) oral communication 3 due developpement l afrique.*.