Perhaps you should try some spelling variations:
oral communication » personal communication
communication 18.3 » communication 1.3, communication 14.3, communication 3.3
does developpement » de developpement, des developpements, does development
developpement et » developpement des, developpement de, development east
typologie cices » typologie eines, typologie des
cices variation » price variation, die variation, does variation
variation des » variation _, variation 6, variation series
et afrique » en afrique, l afrique
18.3 does » 12.3 does, 18.2 does, 13 does
des ddr » der ddr, des dr, dem ddr

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

• Adding a wildcard symbol may retrieve word variants: typologie cices variation des ddr oral communication 18.3 does developpement et afrique.*.