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

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

• Adding a wildcard symbol may retrieve word variants: technologies tax information costs je downward communication 3.2 _ developpement en afrique.*.