Perhaps you should try some spelling variations:
communications case » communication case, communications can, communications code
information 4.3.3 » information 3.3, information 4.2, information 1.5.2
do communications » 10 communications, 14 communications, 2 communications
3 developpement » de developpement, le developpement, et developpement
des afrique » en afrique, de l'afrique
4.3.3 der » 4.3.2 der, 2.3.3 der, 3.3.3 der
der do » der de, der db, der does
case 3 » case 1, case 2

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information 4.3.3 der do communications case 3 developpement des afrique.*.