Perhaps you should try some spelling variations:
oral communication » personal communication
des developpement » des developpements, de developpement, le developpement
developpement de » developpement des, developpement durable
typologie cices » typologie eines, typologie des
cices variation » price variation, die variation, does variation
variation using » variations during, variation und, variation among
using files » using five, using rules, using sales
de afrique » de l'afrique, en afrique, l afrique
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 cices variation using files oral communication a des developpement de afrique.*.