Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developpement et » developpement des, developpement de, development east
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
et afrique » en afrique, l afrique
b 2.2 » _ 2.2

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "rheologie de variation ((b 2.1) OR (b 2.2)) personal communication 2 3 developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: rheologie de variation ((b 2.1) OR (b 2.2)) personal communication 2 3 developpement et afrique.*.