Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
developpements de » developpement de, developpement des, developpement du
des variation » does variation, de variation, der variation
variation bei » variation des, variation der, variation _
typology des » typologie des, typologie der, typology _
de afrique » de l'afrique, en afrique, l afrique
a net » a new, _ net
a neo » a new, _ neo

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 des variation bei _ rural communications ((a net) OR (a neo)) developpements de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology des variation bei _ rural communications ((a net) OR (a neo)) developpements de afrique.*.