Perhaps you should try some spelling variations:
technologies series » technology series
information centers » information contents, information officers
series information » business information
de communication » mobile communication, online communication
3.3 developing » 4 developing, 2 developing, 1 developing
developing 1 » developing _, developing a, developing e
centers 1.3 » centers 3.3, centers 4.3, centers 12.4
costs 3.3 » costs 2.3, costs 3.5, costs 4.3
1.3 de » 1.3 die, 1.3 der, 1.3 den

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

• Adding a wildcard symbol may retrieve word variants: technologies series information centers 1.3 de communication costs 3.3 developing 1 africa.*.