Perhaps you should try some spelling variations:
magen communications » modern communications, face communications, gabon communications
developpement en » developpement et, developpement des, developpement de
variation es » variation des, variation test, variations des
den magen » des magen, den fangen, den augen
3 das » 1 das
2 das » 1 das

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: "typologies _ variation es den magen communications ((3 das) OR (2 das)) developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies _ variation es den magen communications ((3 das) OR (2 das)) developpement en afrique.*.