Perhaps you should try some spelling variations:
1.3 communication » 2.3 communication, 13 communication, 4.3 communication
technology 2.2 » technology _, technology 1, technology 3
2.2 estimation » 2.4 estimation, 3.3 estimation, 4 estimation
estimation der » estimation de, estimation des, estimation under
1.3 developing » 3.3 developing, 13 developing, 7.3 developing
developing 1 » developing _, developing a, developing e
der debatte » die debatte
debatte 1.3 » debatte 3.3, debatte 1.5, debatte 4.3
costs 1.3 » costs 12.3, costs 14.3, costs 15.3

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

• Adding a wildcard symbol may retrieve word variants: technology 2.2 estimation der debatte 1.3 communication costs 1.3 developing 1 africa.*.