Perhaps you should try some spelling variations:
personal communication » interpersonal communication
le developpement » de developpement, sme development
developpement de » developpement des, developpement durable
communication 2 » communication _, communication a, communication 3
rheologie de » rheologie des, theologie der, theologie des
de variation » der variation, die variation, does variation
2.1 personal » 3.1 personal, 2.3 personal, 2.4 personal
variation 6 » variation _, variations _, variation des
de afrique » de l'afrique, en afrique, l afrique
6 2.1 » 66 2.1, b 2.1, _ 2.1
2 le » 2 les, 2 la, 2 de

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

• Adding a wildcard symbol may retrieve word variants: rheologie de variation 6 2.1 personal communication 2 le developpement de afrique.*.