Perhaps you should try some spelling variations:
sonic communication » ironic communication, ethnic communication, optic communication
du developpement » de developpement, le developpement, et developpement
developpement de » developpement des, developpement durable
ideologie des » ideologie der, theologie des, ikonologie des
des variation » does variation, de variation, der variation
variation des » variation _, variation 6, variation series
des one » does one, das one, des onc
a du » a d, a de, a u

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

• Adding a wildcard symbol may retrieve word variants: ideologie des variation des one sonic communication a du developpement de l'afrique.*.