Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
oecd communications » speed communications, cell communications, chad communications
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
5.4 developing » 6.4 developing, 3.3 developing, 2.2 developing
contents die » contents i, contents ai, contents je
developing a » developing _
costs 5.4 » costs 4.4, costs 6.4, costs 2.4
die oecd » der oecd, das oecd
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: technologies 2.1 information contents die oecd communications costs 5.4 developing a africa.*.