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

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typology die variation 6 der 3 communication ((4 der) OR (3 der)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology die variation 6 der 3 communication ((4 der) OR (3 der)) developpement de afrique.*.