Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
innovation 3.4.2 » innovation 3.2.2, innovation 3.4.1, innovation 3.5.2
a communications » a communication, data communications, a communicative
de developpement » sme development
technology used » technology use, technology based, technology users
used innovation » user innovation, use innovation, based innovation
developpement l » developpement il, developpement la, developpement de
3.4.2 der » 2.4.2 der, 4.4.2 der, 3.4.1 der
series de » series d, series e, series new
l afrique » en afrique
der a » der _, der e

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

• Adding a wildcard symbol may retrieve word variants: technology used innovation 3.4.2 der a communications series de developpement l afrique.*.