Perhaps you should try some spelling variations:
transfer innovation » transport innovation, trade innovation, stronger innovation
3.7 communication » 3.2 communication, 2.7 communication, 3.5 communication
innovation wages » innovation age, innovation wave, innovation changes
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
wages race » wages trade, wage rate, wages case
l afrique » en afrique
race 3.7 » races 3.5, range 3.7, race 1.4
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology transfer innovation wages race 3.7 communication costs a developpement l afrique.*.