Perhaps you should try some spelling variations:
f6.2 communication » 6.2 communication, 7.6.2 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
inflation rates » inflation rate
de afrique » de l'afrique, en afrique, l afrique
rates can » rate can, rates cape, rates hans
can f6.2 » case f6.2, can 5.2
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 rates can f6.2 communication costs au developpement de afrique.*.