Perhaps you should try some spelling variations:
downward communication » towards communication, aware communication, hazard communication
information costs » information contents, information centers, information content
communication 3.4 » communication 3.3, communication 2.4, communication 3.2
developpement en » developpement et, developpement des, developpement de
3 developpement » de developpement, le developpement, et developpement
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
je downward » _ downward, a downward, 2.5 downward
costs je » costs _, costs 4, costs a
3.4 3 » 3.4 _, 3.4 a, 3.4 k

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

• Adding a wildcard symbol may retrieve word variants: technologies a information costs je downward communication 3.4 3 developpement en afrique.*.