Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
typologie does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
variation des » variation _, variation 6, variation series
costs rural » cost rural
des costs » gas costs, bus costs, d costs

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

• Adding a wildcard symbol may retrieve word variants: typologie does variation des costs rural communications _ de developpement en afrique.*.