Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
cost information » postal information, about information, asset information
information cost » information costs, information lost, information case
developpement en » developpement et, developpement des, developpement de
technology cost » technology case, technology can, technology choice
cost open » post open
open 3.2 » openmp 3.2, open 5.3, open 6.1

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

• Adding a wildcard symbol may retrieve word variants: technology cost information cost open 3.2 communication costs _ developpement en afrique.*.