Perhaps you should try some spelling variations:
oral communication » personal communication
law developpement » le developpement, au developpement, leur developpement
variation using » variations during, variation und, variation among
typologien der » typologie der, typologie des, apologien der
der variation » de variation, does variation, die variation
des l'afrique » de l'afrique, de l'amerique
using aes » using ae, using als, using bayes
media law » media a
aes oral » des moral, new oral, u.s oral

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

• Adding a wildcard symbol may retrieve word variants: typologien der variation using aes oral communication media law developpement des l'afrique.*.