Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
rural communications » oral communication, rural telecommunications, cultural communications
variation series » education series, action series, edition series
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
typologien der » typologie der, typologie des, apologien der
der variation » de variation, does variation, die variation
series ex » series e, series new, series ein
series au » series a, series ann, series amp
ex rural » a rural, 2 rural, 4 rural

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

• Adding a wildcard symbol may retrieve word variants: typologien der variation series ex rural communications series au developpement en afrique.*.