Perhaps you should try some spelling variations:
information centers » information contents, information officers
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
de communication » mobile communication, online communication
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
centers world » century world, centers hold, century worlds
developing v » developing av, developing _, developing a
costs 2.3 » costs 4.2, costs 4.4
world de » world die, world do, world debt
v africa » 1 africa, em africa

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 world de communication costs 2.3 developing v africa.*.