Perhaps you should try some spelling variations:
6.12 communication » 6.2 communication, 6.1.3 communication, 3.2 communication
technology choice » technology change
choice inflation » choice information, price inflation
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
de afrique » de l'afrique, en afrique, l afrique
rate case » state case, write case, rate caps
case 6.12 » care 6.12, case 6.1, case 6.13
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 choice inflation rate case 6.12 communication costs au developpement de afrique.*.