Perhaps you should try some spelling variations:
csr communications » csr communication, cell communications, chad communications
developpement de » developpement des, developpement durable
how variation » how valuation, does variation, four variation
variation aid » variation im, variation und, variation a
typology how » typology from, typology _, typology 4.1
de afrique » de l'afrique, en afrique, l afrique
aid does » card does, aid days, aid do
does csr » does cash
a bau » a bad, a bab, a ban
a au » a auf, a aus, a a

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: "typology how variation aid does csr communications ((a au) OR (a bau)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology how variation aid does csr communications ((a au) OR (a bau)) developpement de afrique.*.