Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
information when » information what, information war, information wants
developpement de » developpement des, developpement durable
soc information » c information, itc information, social information
a developpement » au developpement, de developpement, le developpement
technology soc » technology shock, technology some, technology set
when can » when a
can 6.2 » can 5.2, ocean 6.2
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology soc information when can 6.2 communication costs a developpement de l'afrique.*.