Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
arab communication » arabia communications, data communication, job communication
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
new arab » new areas, new art
cost 5.4 » costs 5.4, cost 2.4, cost 3.4

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 communication cost 5.4 developing cost access.*.