Perhaps you should try some spelling variations:
technologien aids » technologien als, technologien ad, technologien des
des communication » les communications, nets communication, c's communication
aids information » chandos information, series information
information case » information based, information can, information costs
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
developing a » developing _
costs 2.3 » costs 4.2, costs 4.4
case das » case des, case case, case data
das des » cas des, das der, das dem
a areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information case das des communication costs 2.3 developing a areas.*.