Perhaps you should try some spelling variations:
der transformation » die transformation, zur transformation, energy transformation
transformation use » transformational use, transformations used, transformation und
developpement use » developpement une, developpement de, development use
technologie der » technologie de, technologien des, technologies de
4 communication » 3 communication, 5.4 communication, de communication
3 developpement » de developpement, le developpement, et developpement
use water » unsafe water
water 4 » water _, water a, water 2
media 3 » media _, media 1, media 4

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

• Adding a wildcard symbol may retrieve word variants: technologie der transformation use water 4 communication media 3 developpement use africa.*.