Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
oral communications » oral communication, rural communications, moral communication
technologien od » technologien ad, technologien und, technologien _
od information » d information, nd information, road information
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
developing a » developing _
centers 4.4 » center 4.4, centers 4.3, centers 12.4
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
4.4 oral » 14.4 oral, 5.4 oral, 7.4 oral
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technologien od information centers 4.4 oral communications costs 2.2 developing a africa.*.