Perhaps you should try some spelling variations:
csr communications » csr communication, cell communications, chad communications
developpement de » developpement des, developpement durable
typologien de » typologien der, typologie des, typologie der
de variation » der variation, die variation, does variation
de afrique » de l'afrique, en afrique, l afrique
does csr » does cash
13 der » 1.3 der
13 de » 13 die, 13 des, 13 le

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: "typologien de variation _ does csr communications ((13 de) OR (13 der)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologien de variation _ does csr communications ((13 de) OR (13 der)) developpement de afrique.*.