Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information 1.1.4 » information 4.1.4, information 12.2.4, information 12.6.4
technologien des » technologien fur, technologien und, technologies 2
de communication » mobile communication, online communication
des information » des informations, does information, dis information
e3 developing » 3 developing, 13 developing, 3.3 developing
1.1.4 who » 1.1.1 who, 1.1.2 who, 3.1.4 who
cost e3 » cost 2.3, cost edd
who de » who do, who made, who does

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

• Adding a wildcard symbol may retrieve word variants: technologien des information 1.1.4 who de communication cost e3 developing _ access.*.