Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
development eco » development second, development east, development menu
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
variation a » variation _, variation 6, variation 5
eco afrique » en afrique
a dams » a das, _ dams, 6 dams
a der » _ der, 2 der, 3 der
a dam » a das, a day, _ dam

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: "typologie de variation a der de communication ((a dams) OR (a dam)) development eco afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie de variation a der de communication ((a dams) OR (a dam)) development eco afrique.*.