Perhaps you should try some spelling variations:
2.3.2 communication » 3.3.2 communication, 3.2.3.2 communication, 2.3 communication
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
information a » information age, information about
cash 2.3.2 » case 2.3.2, cash 2.3.1, cases 2.3.2
costs a » costs _, costs 4
a cash » a case

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

• Adding a wildcard symbol may retrieve word variants: technology _ information a cash 2.3.2 communication costs a developpement en afrique.*.