Perhaps you should try some spelling variations:
communications a » communications _, communications law, communications media
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
variation bei » variation des, variation der, variation _
den rural » modern rural
do rural » two rural, 2 rural, 4 rural
a au » a auf, a bau, a aus

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 _ variation bei ((den rural) OR (do rural)) communications a au developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology _ variation bei ((den rural) OR (do rural)) communications a au developpement en afrique.*.