Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
technologien news » technologien des, technologies new, technologien als
information based » information case, information bank, transformation based
news information » new information, users information, aids information
4 developing » 3 developing
pd online » und online, 1 online, 10 online
based pd » based pay, based mps, based pet
costs 4 » costs _, costs a, costs 4.2
a ai » ai ai, a a, a i
_ ai » _ aid, _ air, _ a

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologien news information based pd online communication costs 4 developing ((a ai) OR (_ ai)).~".
• Adding a wildcard symbol may retrieve word variants: technologien news information based pd online communication costs 4 developing ((a ai) OR (_ ai)).*.