Perhaps you should try some spelling variations:
net developpements » et developpements, et developpement, des developpements
developpements en » developpement en, developpement et, developpements de
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
a net » a new, _ net, a neo
dr e » d e, dr h
do i » do _

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 der variation _ ((dr e) OR (do i)) communication a net developpements en afrique.~.
• Adding a wildcard symbol may retrieve word variants: typologie der variation _ ((dr e) or (do i)) communication a net developpements en afrique.*.