Perhaps you should try some spelling variations:
technological routes » technological route, technological resources, technological progress
routes information » states information, does information, acute information
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
developpement et » developpement des, developpement de, development east
a developpement » au developpement, de developpement, le developpement
et afrique » en afrique, l afrique
table 1 » table _, table 4.1
costs a » costs _, costs 4
1 6.2 » 1 3.2, a 6.2, 1 4.2

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

• Adding a wildcard symbol may retrieve word variants: technological routes information table 1 6.2 communication costs a developpement et afrique.*.