Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
u.s communications » 3.1 communications, les communications, nps communications
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
1.1.3 developing » 1.1.2 developing, 4.1.3 developing, 10.2.3 developing
developing 1 » developing _, developing a, developing e
costs 1.1.3 » costs 2.1.3, costs 5.1.3, costs 1.1.2.3
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: technologien aids information centers 3 u.s communications costs 1.1.3 developing 1 africa.*.