Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information context » information content, information contents, information centers
u.s communications » 3.1 communications, les communications, nps communications
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
4.4 developing » 5.4 developing, 6.4 developing, 1.4 developing
developing en » developing e, developing eq, developing egg
en america » _ america
context a » context 3
costs 4.4 » costs 4.2
a u.s » _ 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 context a u.s communications costs 4.4 developing en america.*.