Perhaps you should try some spelling variations:
data communication » data communications
der developpement » de developpement, des developpements, leur developpement
developpement l » developpement il, developpement la, developpement de
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
l afrique » en afrique
a der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: typology der variation _ monetary data communication a der developpement l afrique.*.