Perhaps you should try some spelling variations:
9.4 communication » 5.4 communication, 1.4 communication, 2.4 communication
formationen des » formation des, transformationen des, figurationen des
development l » development li, development 1, development law
l afrique » en afrique
des how » des hofs, eyes how, iles how
how 9.4 » how 2.4, how 3.4
3 same » _ same, 3 safe, 4 same

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 _ formationen des how 9.4 communication ((3 same) OR (3 sama)) development l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies _ formationen des how 9.4 communication ((3 same) OR (3 sama)) development l afrique.*.