Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developpement de » developpement des, developpement durable
communication 2 » communication _, communication a, communication 3
3 developpement » de developpement, le developpement, et developpement
rheologie de » rheologie des, theologie der, theologie des
de variation » der variation, die variation, does variation
variation 27 » variation 2, variation 7, variation 2.1
3.1 personal » a personal, 4 personal, 2 personal
de afrique » de l'afrique, en afrique, l afrique
27 3.1 » 27 31, 22 3.1, 2007 3.1

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

• Adding a wildcard symbol may retrieve word variants: rheologie de variation 27 3.1 personal communication 2 3 developpement de afrique.*.