Perhaps you should try some spelling variations:
mann communications » oman communications, benin communications, gabon communications
developpement en » developpement et, developpement des, developpement de
variation bei » variation des, variation der, variation _
den mann » den magen
bei den » bei der
a das » 1 das, 2 das, _ das
3 das » 1 das, 2 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 bei den mann communications ((a das) OR (3 das)) developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies _ variation bei den mann communications ((a das) OR (3 das)) developpement en afrique.*.