Perhaps you should try some spelling variations:
oral communication » personal communication
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
variation bei » variation des, variation der, variation _
new oral » new moral, knew moral, new rural
bei new » being new
a au » a auf, a bau, a aus

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

• Adding a wildcard symbol may retrieve word variants: typology _ variation bei new oral communication a au developpement en afrique.*.