Perhaps you should try some spelling variations:
technological gap » technological gaps, technological gains, technological arab
3.2 communication » 3 communication, 2.3 communication, de communication
innovation rates » innovation rate, innovation notes, innovation race
developpement la » developpement de, developpement et, developpement du
4 developpement » de developpement, le developpement, et developpement
gap innovation » harp innovation, up innovation, eat innovation
rates case » rates cape, states case, rates east
la afrique » l afrique, la fabrique, en afrique
case 3.2 » case 4.2, case 3.1, case 5.2
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 gap innovation rates case 3.2 communication costs 4 developpement la afrique.*.