Perhaps you should try some spelling variations:
oral communication » personal communication
communication 18.3 » communication 1.3, communication 14.3, communication 3.3
des developpements » deux developpements, de developpement, et developpements
developpements en » developpement en, developpement et, developpements de
typologie cices » typologie eines, typologie des
cices variation » price variation, die variation, does variation
variation des » variation _, variation 6, variation series
18.3 des » 18.3 does, 18.1 des, 18.3 das
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 des developpements en afrique.*.