Perhaps you should try some spelling variations:
deux developpements » des developpements, de developpement, du developpement
vos communications » vs communications, laos communications, do communications
developpements l » developpements de, developpement il, developpement la
des variation » does variation, de variation, der variation
variation bei » variation des, variation der, variation _
l afrique » en afrique
der vos » der von, der vom, de vos

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (typologie OR typology) des variation bei der vos communications _ deux developpements l afrique.~.
• Adding a wildcard symbol may retrieve word variants: (typologie or typology) des variation bei der vos communications _ deux developpements l afrique.*.