Perhaps you should try some spelling variations:
oral communication » personal communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
der variations » der variation, 1er variations, ier variations
variations des » variation des, variationen des, variations west
ideologie der » ideologie und, typologie der
des water » does water, des warner, less water

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

• Adding a wildcard symbol may retrieve word variants: ideologie der variations des water oral communication _ le developpement en afrique.*.