Perhaps you should try some spelling variations:
sites developpement » site development, site's development, de developpement
csr communication » de communication, 3 communication, 4 communication
technologies daf » technologies dans, technologies a, technologies de
developpement de » developpement des, developpement durable
daf information » f information, math information, 2 information
information 3.5 » information 3.2, information 3.4, information 3.3
de afrique » de l'afrique, en afrique, l afrique
3.5 does » 4.5 does, 1.5 does, 3.1 does
does csr » does cash
a sites » _ sites, a site, 2 sites

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

• Adding a wildcard symbol may retrieve word variants: technologies daf information 3.5 does csr communication a sites developpement de afrique.*.