Perhaps you should try some spelling variations:
downward communication » towards communication, aware communication, hazard communication
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
information a » information age, information about
development l » development li, development 1, development law
3 downward » _ downward, a downward, 2.5 downward
l afrique » en afrique
4.1 a » 2.1 a, 3.1 a

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies a information a 3 downward communication ((4.1 a) OR (4.1 _)) development l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies a information a 3 downward communication ((4.1 a) OR (4.1 _)) development l afrique.*.