Perhaps you should try some spelling variations:
csr communications » csr communication, cell communications, chad communications
developpement de » developpement des, developpement durable
des variation » does variation, de variation, der variation
variation der » variation des, variation bei, variation _
der do » der de, der db, der does
do csr » does csr
5 der » _ der, 2 der, 1 der
3 der » _ der, 2 der
typologie » typologies, typology

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

• Performing a fuzzy search may retrieve terms with similar spellings: typologie des variation der do csr communications ((5 der) OR (3 der)) developpement de l'afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "typologie des variation der do csr communications ((5 der) OR (3 der)) developpement de l'afrique.*".