Perhaps you should try some spelling variations:
downward communication » towards communication, aware communication, hazard communication
information chapter » information center, information centers, information exchanges
communication 3.5 » communication 23.5, communication 3.3, communication 3.2
technologies pt » technologies _, technologies 4, technologies 2
pt information » ct information, plot information, get information
four downward » four toward
f developing » 3 developing, 4 developing, 2 developing
developing a » developing _
a afrique » l afrique, en afrique
3.5 f » 3.5 _, 3.5 a, 3.1 f

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

• Adding a wildcard symbol may retrieve word variants: technologies pt information chapter four downward communication 3.5 f developing a afrique.*.