Perhaps you should try some spelling variations:
communication series » communication services, communication systems, communication skills
data communication » data communications
ai developpement » au developpement, de developpement, le developpement
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
des afrique » en afrique, de l'afrique
series ai » series a, series ann, series amp

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

• Adding a wildcard symbol may retrieve word variants: typology der variation _ test data communication series ai developpement des afrique.*.