Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
1.4 communication » 5.4 communication, 1.1 communication, 1.3 communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
contents help » contents head, contents map, contents how
developing em » developing e, developing eq, developing amp
em africa » 1 africa
help 1.4 » help 5.4, help 4.1, help 10
cost 2.2 » costs 2.2, cost 2.4, cost 3.2

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

• Adding a wildcard symbol may retrieve word variants: technologien des information contents help 1.4 communication cost 2.2 developing em africa.*.