Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
variation data » radiation data, variation rate, variation des
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
dem rural » dem gral, do rural
data dem » data den, data does, data do

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

• Adding a wildcard symbol may retrieve word variants: typology des variation data dem rural communications _ du developpement en afrique.*.