Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developpement durable » developpement de
des developpement » des developpements, de developpement, le developpement
variation using » variations during, variation und, variation among
des variation » does variation, de variation, der variation
more personal » some personal, remote personal, source personal
using more » using model, doing more, being more
a des » a der, a das
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 des variation using more personal communication a des developpement durable afrique.*.