Perhaps you should try some spelling variations:
oral communication » personal communication
africa development » african development, american development, physical development
communication 1 » communication _, communication a, communication 3
development en » developpement en, development menu, development eco
ideologie und » theologie und, okologie und
und variation » und variationen, 2 variation, 4 variation
variation des » variation _, variation 6, variation series
hier oral » einer oral
des hier » das hier, es hier, des trier

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

• Adding a wildcard symbol may retrieve word variants: ideologie und variation des hier oral communication 1 africa development en afrique.*.