Perhaps you should try some spelling variations:
service communication » services communication, device communication, services communicating
leur developpement » le developpement, deux developpements, de developpement
developpement de » developpement des, developpement durable
variation debt » variation des, variation der, variation de
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation debt debt service communication a leur developpement de afrique.*.