Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information 3.3.3 » information 4.3.3, information 2.3.2, information 3.2.2
ear communication » csr communication, ec communication, layer communication
technologien nd » technologien und, technologien ad, technologie und
13.4 developing » 1.4 developing, 12.4 developing, 10.4 developing
nd information » und information, d information, od information
developing e » developing _, developing a, developing east
3.3.3 why » 1.3.3 why, 3.2.3 why, 3.3.1 why
cost 13.4 » cost 14.4, cost 3.4, cost 2.4
e access » 2 access, 3 access, 4 access
why ear » why learn, why early, why care

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

• Adding a wildcard symbol may retrieve word variants: technologien nd information 3.3.3 why ear communication cost 13.4 developing e access.*.