Perhaps you should try some spelling variations:
communication series » communication services, communication systems, communication skills
data communication » data communications
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
variation behn » variation bei, variation des, variation der
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
behn does » being does, ban does
does data » does cat
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: typologie der variation behn does data communication series de developpement en afrique.*.