Perhaps you should try some spelling variations:
casa communication » data communication, asia communication, sa communication
developpement l » developpement il, developpement la, developpement de
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
l afrique » en afrique
der casa » der causa, der asa, der cas
a der » 2 der, 3 der, 1 der
a de » a die, a des, _ de

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 de variation _ der casa communication ((a de) OR (a der)) developpement l afrique.~.
• Adding a wildcard symbol may retrieve word variants: typologie de variation _ der casa communication ((a de) or (a der)) developpement l afrique.*.