Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
information century » information centers, information centre, information center
technologies 2.1 » technologies _, technologies 4, technologies a
el communication » cell communication, real communication, 3 communication
2.1 information » 3.1 information
12.4 developing » 1.4 developing, 2.2 developing, 1.3 developing
developing can » developing a, developing ai, developing av
century 3.3 » century 3.1, century 2.3, century 3.2
costa 12.4 » costs 12.4, cost 2.4, cost 14.4
can africa » urban africa
3.3 el » 2.3 el, 3.3 eu

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information century 3.3 el communication costa 12.4 developing can africa.*.