Perhaps you should try some spelling variations:
u.s communication » u.s communications, 2.3 communication, 3.2 communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
communication 2 » communication _, communication a, communication 3
technologies 2 » technologies _, technologies 4
4.2 der » 2.2 der, 3.2 der
der u.s » over u.s, year u.s
2 le » 2 les, 2 la, 2 de

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 4.2 der u.s communication 2 le developpement en afrique.*.