Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
developing asia » development asia, developing a
information 1 » information 2, information 3, information 3.2
a developing » a development
costs a » costs _, costs 4
stresses. » stress.

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

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