Perhaps you should try some spelling variations:
oral communication » personal communication
variation series » education series, action series, edition series
la developpement » le developpement, de developpement, et developpement
developpement de » developpement des, developpement durable
typologie does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
series ddr » series d, series de
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: typologie does variation series ddr oral communication a la developpement de afrique.*.