Perhaps you should try some spelling variations:
technologien dis » technologien des, technologien als, technologien im
de communication » mobile communication, online communication
dis information » mis information, aids information, des informations
2.2 development » 3.2 development, 2.3 development, 4.2 development
development 2.3 » development 2.1, development 1
information 1 » information 2, information 3, information 3.2
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
2.3 areas » 4.3 areas, 2.1 areas, 2.4 areas
debt de » debt do, debt debt, debt gdp
1 debt » 3 debt, 4 debt

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information 1 debt de communication costs 2.2 development 2.3 areas.*.