Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
developpement l » developpement il, developpement la, developpement de
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
l afrique » en afrique
a aus » _ aus, a auf, i aus
a au » a auf, a bau, a a

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 _ homes rural communications ((a au) OR (a aus)) developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie de variation _ homes rural communications ((a au) OR (a aus)) developpement l afrique.*.