Perhaps you should try some spelling variations:
downward communication » towards communication, aware communication, hazard communication
les developpement » le developpement, des developpements, leur developpement
communication 3 » communication _, communication a
developpement l » developpement il, developpement la, developpement de
14.7 downward » 2.5 downward, 5.4 downward
chapter 14.7 » chapter 4.7, chapter 17, chapter 1.2
l afrique » en afrique
3 les » 2 les, 1 les, 5 les

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies _ education chapter 14.7 downward communication 3 les developpement l afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ education chapter 14.7 downward communication 3 les developpement l afrique.*.