Perhaps you should try some spelling variations:
information control » information centre, information content, information contents
communication cost » communication costs, communication costa, communications costs
die communication » de communication, time communication, une communication
technologien dis » technologien des, technologien als, technologien im
dis information » mis information, aids information, des informations
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
control 2.1 » control 12.1, control 4.1, control 2.3

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information control 2.1 die communication cost 2.4 developing _ africa.*.