Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
dams development » dam development, gas development, ads development
development eco » development second, development east, development menu
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
eco afrique » en afrique
a dams » a das, _ dams, a dam
a der » _ der, 2 der, 1 der
3 der » _ der, 2 der

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) OR (3 der)) de communication a dams development eco afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie de variation ((a der) OR (3 der)) de communication a dams development eco afrique.*.