Perhaps you should try some spelling variations:
des developpements » deux developpements, de developpement, et developpements
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
developpements de » developpement de, developpement des, developpement du
gaps information » als information, gets information, laws information
technology gaps » technology gap
de afrique » de l'afrique, en afrique, l afrique
costs des » costs fees
gap rice » gap die, gap rate, gap role
rice 3.1 » rice 2.1, rice 3.3, rice 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology gaps information gap rice 3.1 communication costs des developpements de afrique.*.