Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
5.4 communication » de communication, data communication
technologien und » technologie und, technologien des, technologien fur
und information » fund information, road information, award information
3.3 developing » 4 developing, 2 developing, 1 developing
contents help » contents head, contents map, contents how
developing iv » developing av, developing ict, developing cil
iv africa » v africa, 1 africa, em africa
help 5.4 » help 1.4, help 5.1, help 5.3
cost 3.3 » cost 3.2, cost 2.3, 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 und information contents help 5.4 communication cost 3.3 developing iv africa.*.