Perhaps you should try some spelling variations:
technologies series » technology series
series information » business information
de communication » mobile communication, online communication
6.4 developing » 5.4 developing, 3.3 developing, 2.2 developing
contents 1.3 » contents 1.1, contents 2.3, contexts 1.3
developing 1 » developing _, developing a, developing e
costs 6.4 » costs 4.4, costs 4.2, costs 2.3
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 contents 1.3 de communication costs 6.4 developing 1 africa.*.