Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
developpement de » developpement des, developpement durable
technology use » technology 1, technology 2.2, technology 3
use innovation » user innovation, une innovation, sme innovation
model date » model data, model kate, model update
de afrique » de l'afrique, en afrique, l afrique
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 use innovation model date 2.3 communication costs _ developpement de afrique.*.