Perhaps you should try some spelling variations:
informal communication » internal communication, information communication, internal communications
developpement en » developpement et, developpement des, developpement de
typologien der » typologie der, typologie des, apologien der
der variation » de variation, does variation, die variation
variation und » variation _, variablen und, variation 6
dbs informal » vs informal, b informal, do informal
und dbs » und das, und des, und debt

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

• Adding a wildcard symbol may retrieve word variants: typologien der variation und dbs informal communication media _ developpement en afrique.*.