Perhaps you should try some spelling variations:
communication system » communication systems, telecommunication system, communication series
information space » information search, information service, information science
2.1 development » 3.1 development, 2.3 development, 2.2 development
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
bank africa » bank's africa, can africa, banking africa
system 2.1 » systems 2.1, system 1
space de » espace de, space die, space dead
de mass » de masse, de mais, de masa

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

• Adding a wildcard symbol may retrieve word variants: technologies a information space de mass communication system 2.1 development bank africa.*.