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
de developpement » sme development
developpement de » developpement des, developpement durable
typologien does » typologie des, typologien der, typologie der
does variation » de variation, der variation, die variation
de afrique » de l'afrique, en afrique, l afrique
series de » series d, series e, series new

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

• Adding a wildcard symbol may retrieve word variants: typologien does variation series _ rural communications series de developpement de afrique.*.