Perhaps you should try some spelling variations:
technological open » technological model, technological power, technological options
innovation rates » innovation rate, innovation notes, innovation race
de communication » mobile communication, online communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
rates data » rate data, states data, cases data
costs de » costs _, costs 4, costs a
data de » data den, data die, data do

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

• Adding a wildcard symbol may retrieve word variants: technological open innovation rates data de communication costs de developpement en afrique.*.