Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
la developpement » le developpement, de developpement, et developpement
developpement de » developpement des, developpement durable
typologies des » typologie des, typologie der, typologien der
variation data » radiation data, variation rate, variation des
des variation » does variation, de variation, der variation
do personal » de personal, der personal, das personal
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: typologies des variation data do personal communications _ la developpement de afrique.*.