Perhaps you should try some spelling variations:
formal communication » informal communication, oral communication, moral communication
de developpement » sme development
developpement de » developpement des, developpement durable
variation using » variations during, variation und, variation among
des variation » does variation, de variation, der variation
loss formal » less formal, does formal, loss form
using loss » using less, using logs, using cross
media de » media die, media der, media diet
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 using loss formal communication media de developpement de l'afrique.*.