Perhaps you should try some spelling variations:
oral communication » personal communication
dam developpement » de developpement, du developpement, au developpement
communication pt » communication 3, communication 1, communication 2
variation der » variation des, variation bei, variation _
des afrique » en afrique, de l'afrique
first oral » first organ, first deal, first drupal
der first » dead first, der firma, our first

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

• Adding a wildcard symbol may retrieve word variants: typology _ variation der first oral communication pt dam developpement des afrique.*.