Perhaps you should try some spelling variations:
data communication » data communications
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
developing 11 » developing _, developing a, developing e
4 developing » 3 developing
11 access » 1.1 access, 10 access, 12 access
3.2 why » 1.2 why, 2.2 why, 8.2 why
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information 3.2 why data communication costs 4 developing 11 access.*.