Perhaps you should try some spelling variations:
transformation und » transformation _, transformation a
1 transformation » 4 transformation, die transformation, der transformation
de communication » mobile communication, online communication
technology 1 » technology _
4 developing » 3 developing
developing e » developing _, developing a, developing east
und debate » un debate, und debatten, under debate
debate de » debates de, debate we, debatte der
e africa » em africa, de africa, eu africa
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 1 transformation und debate de communication costs 4 developing e africa.*.