Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
nps communications » les communications, u.s communications, vos communications
technologies 4 » technologies _
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
4 information » 2 information, 1 information
contents 1.3 » contents 1.1, contents 2.3, contexts 1.3
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
1.3 nps » 1.3 apfs

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information contents 1.3 nps communications costs 2.2 developing _ africa.*.