Perhaps you should try some spelling variations:
23 communication » 2.3 communication, 3 communication, 13 communication
communication 13 » communication 1.3, communication 3, communication 1
de developpement » sme development
des afrique » en afrique, de l'afrique
4.2 der » 2.2 der, 3.2 der
der 23 » der 24, der 25, der 20
13 de » 13 die, 13 der, 13 des

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information 4.2 der 23 communication 13 de developpement des afrique.*.