Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information costs » information contents, information centers, information content
use information » user information, house information, users information
4 communication » 3 communication, 5.4 communication, de communication
technology use » technology 1, technology 2.2, technology 3
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
costs debates » los debates, concepts debates
developing 1 » developing _, developing a, developing e
debates 4 » debates _, debate 4, debates y

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

• Adding a wildcard symbol may retrieve word variants: technology use information costs debates 4 communication cost 2.4 developing 1 africa.*.