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 2 » technologies _, technologies 4
development li » development lid, development lie, development lin
ena downward » a downward, _ downward, 2.5 downward
li afrique » l afrique, en afrique
costs ena » costs a
3.2 a » 3.2 _, 2.2 a

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information costs ena downward communication 3.2 a development li afrique.*.