Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technology business » technology readiness
information centers » information contents, information officers
u.s communications » 3.1 communications, les communications, nps communications
12.4 developing » 1.4 developing, 2.2 developing, 1.3 developing
costs 12.4 » costs 11.4, costs 12.3, costs 2.4
centers 3 » centers _, centers a, centers 3.3
3 u.s » _ u.s, a u.s, 4 u.s

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

• Adding a wildcard symbol may retrieve word variants: technology business information centers 3 u.s communications costs 12.4 developing _ africa.*.