Perhaps you should try some spelling variations:
information centers » information contents, information officers
debt communication » de communication, et communication, get communication
technologien dis » technologien des, technologien als, technologien im
dis information » mis information, aids information, des informations
1.4 developing » 12.4 developing, 1.3 developing, 14 developing
developing ict » developing east, developing city, developing data
centers 13 » centers 10, centers 3, centers 3.3
ict afrika » ii afrika
costs 1.4 » costs 11.4, costs 12.4, costs 4.4
13 debt » 3 debt, 83 debt, 2.3 debt

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information centers 13 debt communication costs 1.4 developing ict afrika.*.