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
development en » developpement en, development menu, development eco
je downward » _ downward, a downward, 2.5 downward
costs je » costs _, costs 4, 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 _ information costs je downward communication 3.2 a development en afrique.*.