Perhaps you should try some spelling variations:
developing learning » development learning, developing teaching
transformations 13 » transformations 1, transformations 3, transformations 10
2 transformations » _ transformations, 9 transformations, 2 transformation
de communication » mobile communication, online communication
technologies 2 » technologies _, technologies 4
4 developing » 3 developing
costs 4 » costs _, costs a, costs 4.2
13 und » 1933 und
und de » und der, und des, und den
loss. » less.

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 transformations 13 und de communication costs 4 developing learning loss.*.