Perhaps you should try some spelling variations:
oral communication » personal communication
communication 13 » communication 1.3, communication 3, communication 1
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
typologie die » typologie des, typologie der, theologie die
die variation » de variation, does variation, der variation
variation des » variation _, variation 6, variation series
des ddr » der ddr, des dr, dem ddr
13 le » 10 le, 18 le, 13 la

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

• Adding a wildcard symbol may retrieve word variants: typologie die variation des ddr oral communication 13 le developpement en afrique.*.