Perhaps you should try some spelling variations:
oral communication » personal communication
communication 18.3 » communication 1.3, communication 14.3, communication 3.3
des developpements » deux developpements, de developpement, et developpements
developpements en » developpement en, developpement et, developpements de
des variation » does variation, de variation, der variation
variation 6 » variation _, variations _, variation des
18.3 des » 18.3 does, 18.1 des, 18.3 das
6 ddr » 6 der, _ ddr
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 6 ddr oral communication 18.3 des developpements en afrique.*.