Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
model communications » modern communications, border communications, aided communications
des transformations » les transformations, model transformations, order transformations
transformations 3.2 » transformation 3.2, transformations 3.1, transformations 9.2
technologien des » technologien fur, technologien und, technologies 2
developing 2 » developing _, developing a, developing e
model model » models model, model code
3.2 model » 4.2 model
2 areas » 1 areas, 2 areal, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien des transformations 3.2 model model communications costs _ developing 2 areas.*.