Perhaps you should try some spelling variations:
formal communication » informal communication, oral communication, moral communication
communication 5.1 » communications 5.1, communication 4.1, communication 5.5
au developpement » du developpement, de developpement, le developpement
developpement il » developpement de, developpement et, developpement du
des variation » does variation, de variation, der variation
does formal » loss formal, does formality, des formalen
il afrique » l afrique, en afrique
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 _ does formal communication 5.1 au developpement il afrique.*.