Perhaps you should try some spelling variations:
oral communication » personal communication
et developpement » de developpement, le developpement, test development
information und » informations und
developpement l » developpement il, developpement la, developpement de
deren oral » derived oral
und deren » und der
l afrique » en afrique
costs et » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology _ information und deren oral communication costs et developpement l afrique.*.