Perhaps you should try some spelling variations:
oral communication » personal communication
communication 13 » communication 1.3, communication 3, communication 1
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
les variations » its variations, 1er variations, ier variations
variations des » variation des, variationen des, variations west
typologie les » typologie des, typologie der, typologie et
des ddr » der ddr, des dr, dem ddr
13 de » 13 die, 13 der, 13 des

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

• Adding a wildcard symbol may retrieve word variants: typologie les variations des ddr oral communication 13 de developpement en afrique.*.