Perhaps you should try some spelling variations:
development child » development chile, development china, development build
de communication » mobile communication, online communication
information 3.3 » information 3.2, information 3.4, information 3.5
2.1 development » 3.1 development, 2.3 development, 2.2 development
technologies 4 » technologies _
4 information » 2 information, 1 information
child across » old across
costs 2.1 » costs 2.3, costs 4.1, costs 2.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information 3.3 _ de communication costs 2.1 development child across.*.