Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
le developpement » de developpement, sme development
variation using » variations during, variation und, variation among
developpement l » developpement il, developpement la, developpement de
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
using aes » using ae, using als, using bayes
series le » series e, series de, series ltre
l afrique » en afrique
aes data » aesi data, als data, des data

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

• Adding a wildcard symbol may retrieve word variants: typology de variation using aes data communications series le developpement l afrique.*.