Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
arab communications » arabia communications, rural communications, qatar communications
information 4.1.3 » information 4.3.3, information 3.1.3, information 4.1.1
technologien der » technologien des, technologie der, technologien fur
der information » insider information, sector information, labor information
developing cost » developing post, developing cross, developing east
5.4 developing » 6.4 developing, 3.3 developing, 2.2 developing
cost access » port access, out access, forest access
4.1.3 new » 4.1.1 new, 5.1.3 new, 2.1.3 news
costs 5.4 » costs 4.4, costs 6.4, costs 2.4
new arab » new areas, new art

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

• Adding a wildcard symbol may retrieve word variants: technologien der information 4.1.3 new arab communications costs 5.4 developing cost access.*.