Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
technologien fur » technologien des, technologien und, technologies 2
information when » information what, information war, information wants
de developpement » sme development
developpement de » developpement des, developpement durable
fur information » zur information, fair information, your information
de afrique » de l'afrique, en afrique, l afrique
when data » open data
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: technologien fur information when data voice communication a de developpement de afrique.*.