Perhaps you should try some spelling variations:
developpement en » developpement et, developpement des, developpement de
4 communication » 3 communication, 5.4 communication, de communication
des variation » does variation, de variation, der variation
variation did » variation des, variation der, variation im
typology des » typologie des, typologie der, typology _
did ses » dire ses
5 power » 2 power, 3 power
4 power » 2 power, 3 power
ses 4 » ses _, des 4, set 4

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: "typology des variation did ses 4 communication ((5 power) OR (4 power)) developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology des variation did ses 4 communication ((5 power) OR (4 power)) developpement en afrique.*.