Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement de » developpement des, developpement durable
variation smart » variation aware, variation space, variation impacts
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
smart home » smart homes
de afrique » de l'afrique, en afrique, l afrique
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation smart home oral communication a de developpement de afrique.*.