Perhaps you should try some spelling variations:
data communication » data communications
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
variation level » radiation level, variation over, variation series
level monetary » less monetary, local monetary, general monetary
der variation » de variation, does variation, die variation
de afrique » de l'afrique, en afrique, l afrique
a et » a set, a net, a bet

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

• Adding a wildcard symbol may retrieve word variants: okonomie der variation level monetary data communication a et developpement de afrique.*.