Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
4 developing » 3 developing
developing 2 » developing _, developing a, developing e
costs 4 » costs _, costs a, costs 4.2
2 areal » 2 real, _ areal, 2 areas
1 aid » _ aid, 1 aim, 1 air
1 add » _ add

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 des information ((1 aid) OR (1 add)) de communication costs 4 developing 2 areal.~".
• Adding a wildcard symbol may retrieve word variants: technologien des information ((1 aid) OR (1 add)) de communication costs 4 developing 2 areal.*.