Perhaps you should try some spelling variations:
technological chain » technological change, technological choice, technological gains
chain innovation » chain integration, open innovation, green innovation
de communication » mobile communication, online communication
innovation rate » innovation race, innovation create, innovation state
a developpement » au developpement, de developpement, le developpement
des afrique » en afrique, de l'afrique
rate date » rate data, trade date, rate water
date de » daten der, daten des, date edd
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: technological chain innovation rate date de communication costs a developpement des afrique.*.