Perhaps you should try some spelling variations:
personal communication » interpersonal communication
figures personal » cities personal, sources personal
et developpement » de developpement, le developpement, test development
communication 2 » communication _, communication a, communication 3
rheologie des » theologie des, theologie der, ideologie des
des variation » does variation, de variation, der variation
variation des » variation _, variation 6, variation series
des afrique » en afrique, de l'afrique
2 et » 2 set, 12 et, 2 ets

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

• Adding a wildcard symbol may retrieve word variants: rheologie des variation des figures personal communication 2 et developpement des afrique.*.