Perhaps you should try some spelling variations:
communication case » communications case, communication based, communication phase
information 2.3.1 » information 2.3.2, information 5.3.1, information 2.3.3
dr communication » de communication, csr communication, 3 communication
le developpement » de developpement, sme development
des afrique » en afrique, de l'afrique
2.3.1 der » 2.3.1 die
case le » case l, case la, case like
der dr » der ddr, der der, der drg

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information 2.3.1 der dr communication case le developpement des afrique.*.