Perhaps you should try some spelling variations:
optic communication » optical communications, public communication, device communication
does developpement » de developpement, des developpements, does development
developpement de » developpement des, developpement durable
communication 3 » communication _, communication a
des variation » does variation, de variation, der variation
variation 3 » variation _, variation 6, variation 5
des optic » des opec, des mitic, des optes
3 does » 13 does, 2 does, 4 does
3 des » 3 der, 3 das, a des
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation 3 des optic communication 3 does developpement de l'afrique.*.