Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
les communications » laos communications, nps communications, u.s 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 can » developing a, developing ai, developing av
can america » pan america, pan american, en america
centers a » centers _, center a, enters a
costs 4.4 » costs 4.2
a les » a lens, a less, 2 les

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 a les communications costs 4.4 developing can america.*.