Perhaps you should try some spelling variations:
information century » information centers, information centre, information center
debt communication » de communication, et communication, get communication
technologien 2 » technologies 2, technologien _, technologien 1
1.4 developing » 12.4 developing, 1.3 developing, 14 developing
century book » century bce
developing 1 » developing _, developing a, developing e
book debt » bank debt, work debt
costs 1.4 » costs 11.4, costs 12.4, costs 4.4

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

• Adding a wildcard symbol may retrieve word variants: technologien 2 information century book debt communication costs 1.4 developing 1 africa.*.