Perhaps you should try some spelling variations:
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
developpement en » developpement et, developpement des, developpement de
als information » als informations, aids information, laws information
a developpement » au developpement, de developpement, le developpement
technology als » technology a, technology age, technology act
gap rice » gap die, gap rate, gap role
rice 3.1 » rice 2.1, rice 3.3, rice 4.1
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 als information gap rice 3.1 communication costs a developpement en afrique.*.