Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
developpement de » developpement des, developpement durable
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
2 rural » a rural
bei 2 » bei _, bei a
a die » 2 die, 3 die, _ die
a de » a der, a des, _ de

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 2 rural communications ((a de) OR (a die)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology des variation bei 2 rural communications ((a de) OR (a die)) developpement de afrique.*.