Perhaps you should try some spelling variations:
information source » information sources, information resource, information resources
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
developpement la » developpement de, developpement et, developpement du
a developpement » au developpement, de developpement, le developpement
3 information » 1 information
technology 3 » technology _, technology 1, technology 4
source role » sources role, source code, resources role
la afrique » l afrique, la fabrique, en afrique
role 2.7 » role 2.4, role 10.7, role 1.1
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 3 information source role 2.7 communication costs a developpement la afrique.*.