Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
developpement de » developpement des, developpement durable
apologien der » typologien der, apologie des, ideologien der
der variation » de variation, does variation, die variation
variation a » variation _, variation 6, variation 5
know rural » new rural, how rural
de afrique » de l'afrique, en afrique, l afrique
a know » a known, _ know, i know
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: "apologien der variation a know rural communications ((a et) OR (a bet)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: apologien der variation a know rural communications ((a et) OR (a bet)) developpement de afrique.*.