Perhaps you should try some spelling variations:
communications system » communication system, communication systems, commusnication systems
information space » information search, information service, information science
technologies de » technologies _, technologies 4, technologies 2
de information » die information, de informacion, e information
development co » development case, development china
co africa » can africa, do african, 1 africa
space de » espace de, space die, space dead
system 2 » system 3, system 1, system 2.1
de data » e data, wide data, de datos

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

• Adding a wildcard symbol may retrieve word variants: technologies de information space de data communications system 2 development co africa.*.