Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
innovation state » innovation space, innovation rate, innovation strategy
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
technology gaps » technology gap
gaps innovation » als innovation, cars innovation, groups innovation
state case » states case, states cases, state based
de afrique » de l'afrique, en afrique, l afrique
case 2.2 » cases 2.2, case 4.2, case 2.3
costs au » costs a, costs amy, costs _

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

• Adding a wildcard symbol may retrieve word variants: technology gaps innovation state case 2.2 communication costs au developpement de afrique.*.