Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information efforts » innovation efforts, transformation efforts, informations ressorts
3.1 communications » 3.1 communication, 4.1 communication, 1.1 communication
du developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
a information » 2 information, 1 information
technology a » technology 1, technology 3, technology 4
efforts from » effects from, exports from, imports from
l afrique » en afrique
from 3.1 » from 1.1b, from 9.14, strom 3.1
costs du » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology a information efforts from 3.1 communications costs du developpement l afrique.*.