Perhaps you should try some spelling variations:
data communication » data communications
technologien aids » technologien als, technologien ad, technologien des
information based » information case, information bank, transformation based
aids information » chandos information, series information
4 developing » 3 developing
developing 4 » developing _, developing a, developing e
based dm » based dna, based ndc, based na
dm data » dpm data, em data, nm data
costs 4 » costs _, costs a, costs 4.2
4 areas » 1 areas, 2 areas, 4 areal

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information based dm data communication costs 4 developing 4 areas.*.