Perhaps you should try some spelling variations:
der developpement » de developpement, des developpements, leur developpement
un communication » 3 communication, 4 communication, 1 communication
communication 4 » communication _, communication a, communication 3
die variation » de variation, does variation, der variation
typology die » typology _, typology 4.1, typology 6
des afrique » en afrique, de l'afrique
4 der » 2 der, 3 der, 1 der

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

• Adding a wildcard symbol may retrieve word variants: typology die variation _ der un communication 4 der developpement des afrique.*.