Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
developpement et » developpement des, developpement de, development east
variation de » variation des, variation der, variation due
first rural » firm rural, firms rural, first real
et afrique » en afrique, l afrique
de first » der first, d first, we first
a auf » i auf, b auf
a au » a bau, a aus, a a

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: typology _ variation de first rural communications ((a au) OR (a auf)) developpement et afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "typology _ variation de first rural communications ((a au) OR (a auf)) developpement et afrique.*".