Perhaps you should try some spelling variations:
developpement en » developpement et, developpement des, developpement de
4 communication » 3 communication, 5.4 communication, de communication
die variation » de variation, does variation, der variation
typology die » typology _, typology 4.1, typology 6
variation 6 » variation _, variations _, variation des
6 der » 2 der, 3 der, 1 der
der 4 » der _, der e, der a
4 der » 2 der, 3 der, 1 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 4 communication ((4 der) OR (_ der)) developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology die variation 6 der 4 communication ((4 der) OR (_ der)) developpement en afrique.*.