Perhaps you should try some spelling variations:
oral communication » personal communication
au developpement » du developpement, de developpement, le 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
new oral » new moral, knew moral, new rural
media au » medias au, media a, media ai

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 new oral communication media au developpement des l'afrique.*.