Perhaps you should try some spelling variations:
4.2 developpement » 4.2 development, de developpement, le developpement
technology users » technology use, technology series, technology transfers
3 communication » 4 communication, de communication, data communication
users section » use section, users fiction, causes section
section case » sectional case, section based, sector case
case change » cause changes, based change, phase change
des afrique » en afrique, de l'afrique
change 3 » change 1

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

• Adding a wildcard symbol may retrieve word variants: technology users section case change 3 communication costs 4.2 developpement des afrique.*.