Perhaps you should try some spelling variations:
communication modes » communication model, communication des, communication media
information 2.3.3 » information 4.3.3, information 2.3.2, information 3.3.3
de developpement » sme development
4 communication » 3 communication, 5.4 communication, de communication
des afrique » en afrique, de l'afrique
2.3.3 der » 2.3.1 der, 2.3.2 der, 3.3.3 der
modes de » mondes de, mode de, modeles de
der 4 » der _, der e, der a

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information 2.3.3 der 4 communication modes de developpement des afrique.*.