Perhaps you should try some spelling variations:
personal communication » interpersonal communication
climate variations » climate variation, climatic variations, climate variables
die developpement » de developpement, le developpement, du developpement
variations 6 » variations _, variation 6, variations 1
de personal » der personal, des personal, de persona
des afrique » en afrique, de l'afrique
a die » 2 die, 3 die, _ die
6 de » 6 die, 6 der, _ de
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie climate variations 6 de personal communication a die developpement des afrique.*.