Perhaps you should try some spelling variations:
oral communication » personal communication
variation series » education series, action series, edition series
le developpement » de developpement, sme development
developpement de » developpement des, developpement durable
communication 3 » communication _, communication a
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
series from » services from, stories from, memories from
from oral » from moral, from rural, from oil
3 le » 3 les, 3 la, 1 le

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation series from oral communication 3 le developpement de l'afrique.*.