Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
technological up » technological gap, technological _, technological gaps
innovation rates » innovation rate, innovation notes, innovation race
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
up innovation » 2 innovation, 3 innovation, 4 innovation
rates case » rates cape, states case, rates east
de afrique » de l'afrique, en afrique, l afrique
case 2.3 » case 3, case 4.1, case 4.2
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technological up innovation rates case 2.3 communication costs 4 developpement de afrique.*.