Perhaps you should try some spelling variations:
25.7 communication » 2.7 communication, 2.3 communication, 2.2 communication
technology change » technological change, technological changes
change innovation » change information, chain innovation, trade innovation
innovation rates » innovation rate, innovation notes, innovation race
au developpement » du developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
rates care » rates cape, states care, rates have
care 25.7 » care 2.7, care 2.5.1, care 5.5.7
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 change innovation rates care 25.7 communication costs au developpement l afrique.*.