Perhaps you should try some spelling variations:
und informationelle » auf informationelle, und information
informationelle und » informationen und, informationelle guter, informations und
voice communication » voice communications, mobile communication, device communication
de developpement » sme development
technologie und » technologies 2.1
des afrique » en afrique, de l'afrique
raum voice » room voice
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologie und informationelle und raum voice communication a de developpement des afrique.*.