Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
care information » more information, change information, trade information
du developpement » de developpement, le developpement, et developpement
technology care » technology case, technology curve, technology can
information per » information super, information part, information pt
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
costs du » costs _, costs 4, costs a
se 6.2 » sne 6.2, use 6.2, case 6.2

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

• Adding a wildcard symbol may retrieve word variants: technology care information per se 6.2 communication costs du developpement l afrique.*.