Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
innovation based » innovation case
technology 3 » technology _, technology 1, technology 4
3 innovation » 2 innovation
des afrique » en afrique, de l'afrique
based date » based data, based water, based state
date 2.3 » daten 2.3, data 2.3, rate 2.3

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

• Adding a wildcard symbol may retrieve word variants: technology 3 innovation based date 2.3 communication costs _ developpement des afrique.*.