Perhaps you should try some spelling variations:
innovation effects » innovation effect, innovation efforts, innovating effect
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
technology back » technology book, technology stacks, technology based
back innovation » back innovations, lacks innovation, track innovation
de afrique » de l'afrique, en afrique, l 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 back innovation effects from _ communication costs au developpement de afrique.*.