Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centre » information centers, information contents
4 communications » 14 communications, 4 communication, 2 communications
technologie und » technologies 2.1
und information » fund information, road information, award information
6.4 developing » 5.4 developing, 3.3 developing, 2.2 developing
centre book » century book, centre room, centre work
costs 6.4 » costs 4.4, costs 4.2, costs 2.3
book 4 » book _, book 2, book 1

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

• Adding a wildcard symbol may retrieve word variants: technologie und information centre book 4 communications costs 6.4 developing _ africa.*.