Perhaps you should try some spelling variations:
der developpement » de developpement, des developpements, leur developpement
developpement en » developpement et, developpement des, developpement de
3 communication » 4 communication, de communication, data communication
die variation » does variation, der variation, price variation
de variation » der variation, does variation, de validation
6 der » 2 der, 3 der, 1 der
der 3 » der _, der e, des 3

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) OR (de variation)) 6 der 3 communication _ der developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology ((die variation) OR (de variation)) 6 der 3 communication _ der developpement en afrique.*.