Perhaps you should try some spelling variations:
services telecommunications » service telecommunications, service telecommunication, references telecommunications
telecommunications a » telecommunications _, telecommunications 1, telecommunications 7
des developpement » des developpements, de developpement, le developpement
variation des » variation _, variation 6, variation series
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
des services » debt services, bus services, e services
des afrique » en afrique, de l'afrique
des des » des deas, des dem, des der
a des » a der, a das

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation des des services telecommunications a des developpement des afrique.*.