Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
information center » information centers, information centre, information content
data communication » data communications
developing urban » development urban, developing human, developing areas
technologies 2 » technologies _, technologies 4
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
urban africa » urban area
center 3.2 » center 3.1, center 13.5, century 3.2
costa 2.4 » cost 2.4, costs 2.4, costs 12.4

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information center 3.2 data communication costa 2.4 developing urban africa.*.