Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
data communication » data communications
information 6.3.2 » information 2.3.2, information 4.3.2, information 3.3.2
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
4 developing » 3 developing
developing 3 » developing _, developing a, developing e
6.3.2 who » 16.3.2 who, 6.3.4 who, 6.6.2 who
who data » eo data, geo data, two data
3 access » 2 access
cost 4 » cost _, cost 2.4

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

• Adding a wildcard symbol may retrieve word variants: technologien des information 6.3.2 who data communication cost 4 developing 3 access.*.