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
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
contents die » contents i, contents ai, contents je
developing 1 » developing _, developing a, developing e
costs 2.4 » costs 12.4, costs 23.4, cost 2.4
die oecd » der oecd, das oecd

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 2.4 developing 1 africa.*.