Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
developpement l » developpement il, developpement la, developpement de
variation des » variation _, variation 6, variation series
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
firms rural » firm rural
des firms » des firmes, ideas firms, best firms
l afrique » en afrique
a le » a les, a l, a e

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 de variation des firms rural communications ((a le) OR (a la)) developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology de variation des firms rural communications ((a le) OR (a la)) developpement l afrique.*.