Perhaps you should try some spelling variations:
2.4 communication » 2.14 communication, 5.4 communication, 2.3 communication
technology trade » technology trends, technology transfer, technology transfers
au developpement » du developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
regulation low » regulation law, regulating low, regulation box
low priced » lower prices, low enriched
priced 2.4 » prices 2.4, price 2.4, price 2.3
l afrique » en afrique
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 trade regulation low priced 2.4 communication costs au developpement l afrique.*.