Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
typologien der » typologie der, typologie des, apologien der
development en » developpement en, development menu, development eco
der variation » de variation, does variation, die variation
firm rural » from rural
a bet » a best, a bent, a beta
a et » a set, a net, a jet

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: "typologien der variation _ firm rural communications ((a et) OR (a bet)) development en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologien der variation _ firm rural communications ((a et) OR (a bet)) development en afrique.*.