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
information 1.2 » information 1.5.2, information 2
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
1.2 debt » 4.2 debt, 10.8 debt, 1.2 der
debt de » debt do, debt debt, debt gdp

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information 1.2 debt de communication costs 2.2 developing _ areas.*.