Perhaps you should try some spelling variations:
oral communication » personal communication
deux developpement » deux developpements, de developpement, du developpement
developpement l » developpement il, developpement la, developpement de
des variation » does variation, de variation, der variation
variation des » variation _, variation 6, variation series
typology des » typologie des, typologie der, typology _
l afrique » en afrique
new oral » new moral, knew moral, new rural

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

• Adding a wildcard symbol may retrieve word variants: typology des variation des new oral communication a deux developpement l afrique.*.