Perhaps you should try some spelling variations:
information 4.3.3 » information 3.3, information 4.2, information 1.5.2
de communication » mobile communication, online communication
technologies 2 » technologies _, technologies 4
3 developing » 3 development
developing a » developing _
4.3.3 ad » 4.3.3 a, 4.3.3 land, 4.3.3 das
costs 3 » costs _, costs 4, costs a
a areas » 1 areas, 2 areas, 4 areas
ad de » ad d, av de, d de

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 4.3.3 ad de communication costs 3 developing a areas.*.