Perhaps you should try some spelling variations:
information 4.3.3 » information 3.3, information 4.2, information 1.5.2
technologies 2.1 » technologies _, technologies 4, technologies a
de communication » mobile communication, online communication
2.1 information » 3.1 information
development ct » development cst, development co, development c
ct across » cil across, 19 across, eu across
4.3.3 e » 4.3.3 _, 4.3.3 a, 4.3.3 die
costs 2 » costs 20, costs _, costs 4
e de » et de, e die, e der

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 4.3.3 e de communication costs 2 development ct across.*.