Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
variation series » education series, action series, edition series
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
series dem » series de, series nejm, series d
dem rural » dem gral, do rural

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

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