Perhaps you should try some spelling variations:
developpement durable » developpement de
formal communication » informal communication, oral communication, moral communication
le developpement » de developpement, sme development
ideologie des » ideologie der, theologie des, ikonologie des
des variation » does variation, de variation, der variation
variation und » variation _, variablen und, variation 6
los formal » loss formal, less formal, does formal
und los » und locus, und lohrs, und losch
a le » a les, a la, a l

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

• Adding a wildcard symbol may retrieve word variants: ideologie des variation und los formal communication a le developpement durable afrique.*.