Perhaps you should try some spelling variations:
communication cases » communication case, communication costs, communication based
information centre » information centers, information contents
technologien mis » technologien mit, technologien des, technologien als
de communication » mobile communication, online communication
mis information » dis information, aids information, ids information
3.3 developing » 4 developing, 2 developing, 1 developing
centre a » centres a, centre _, centre c
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 mis information centre a de communication cases 3.3 developing _ africa.*.