Perhaps you should try some spelling variations:
technological open » technological model, technological power, technological options
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
innovation one » innovation money, innovation oder, innovation over
de afrique » de l'afrique, en afrique, l afrique
one money » money money, more money, love money
money 6.2 » money 2
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technological open innovation one money 6.2 communication costs 4 developpement de afrique.*.