Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
technologien laws » technologien als, technologien des, technologien am
laws information » news information, als information, platas information
development asia » development aid, development africa, development a
information 1 » information 2, information 3, information 3.2
4 development » 2 development, 4 developing
costs 4 » costs _, costs a, costs 4.2
stresses. » stress.

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

• Adding a wildcard symbol may retrieve word variants: technologien laws information 1 _ voice communication costs 4 development asia stresses.*.