Perhaps you should try some spelling variations:
calculation module » calculation model, calculation source, calculation procedure
clean development » human development, urban development
de communication » mobile communication, online communication
development east » development southeast, development 1
east afrique » east africa, east african, en afrique
costs clean » costs clear
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 _ calculation module e de communication costs clean development east afrique.*.