Perhaps you should try some spelling variations:
oral communication » personal communication
does developpement » de developpement, des developpements, does development
developpement de » developpement des, developpement durable
variation des » variation _, variation 6, variation series
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
de afrique » de l'afrique, en afrique, l afrique
u.s oral » u.s oil
des u.s » des us, der u.s
a does » 2 does, 4 does, 1 does

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation des u.s oral communication a does developpement de afrique.*.