Perhaps you should try some spelling variations:
otras communication » optical communication, towards communication, actors communication
information costs » information contents, information centers, information content
development works » development work, development workshop, development network
technologies 4 » technologies _
4 information » 2 information, 1 information
works africa » towns africa
costs 4.4 » costs 4.2
4.4 otras » 3.4 otras, 2.3 otras
media a » media _, media 1, media 3

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information costs 4.4 otras communication media a development works africa.*.