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
des variation » does variation, de variation, der variation
l afrique » en afrique
6 did » 6 die, 7 did, 3 did
_ did » _ die
3 due » 3 die, _ due, 1 due
typologie » typologies, typology

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologie des variation ((6 did) OR (_ did)) oral communication 3 due developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie des variation ((6 did) OR (_ did)) oral communication 3 due developpement l afrique.*.