Perhaps you should try some spelling variations:
personal communication » interpersonal communication
communication cost » communication costs, communication costa, communications costs
information 6.1.1 » information 4.1.1, information 6.1.3, information 7.1.1
technologien und » technologie und, technologien des, technologien fur
und information » fund information, road information, award information
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
developing a » developing _
1 personal » a personal, 4 personal, 1945 personal
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
a access » 2 access, 3 access, 4 access
6.1.1 1 » 6.1.1 _, 6.1.1 a, 6.1.1 ai

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

• Adding a wildcard symbol may retrieve word variants: technologien und information 6.1.1 1 personal communication cost 2.2 developing a access.*.