Perhaps you should try some spelling variations:
calculation module » calculation model, calculation source, calculation procedure
technologies 2.1 » technologies _, technologies 4, technologies a
de communication » mobile communication, online communication
development east » development southeast, development 1
2.1 calculation » 3.1 calculation, 2.3 calculation, 2.5 calculation
east afrique » east africa, east african, en afrique
costs human » sts human, ghosts humans, beasts human
module e » module _, module 1, module 2
e de » et de, e die, e der

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 calculation module e de communication costs human development east afrique.*.