Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
post communication » postal communication, iot communication, put communication
des developpements » deux developpements, de developpement, et developpements
developpements de » developpement de, developpement des, developpement du
based innovation » und innovation
innovation needs » innovation new, innovation never, innovation node
communication 3 » communication _, communication a
de afrique » de l'afrique, en afrique, l afrique
needs 4.2 » needs 4.3, needs 4.5, needs 4.1
4.2 post » 2.2 post, 3.2 post, 6.2 post
3 des » 3 der, 3 das, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies based innovation needs 4.2 post communication 3 des developpements de afrique.*.