Perhaps you should try some spelling variations:
model transformation » der transformation, social transformation, rural transformation
technological model » technological models, technological tools, technological content
transformation aus » transformation als, transformation a, transformation case
de communication » mobile communication, online communication
3 developing » 3 development
bonn de » bonn die, bonn der, bann der
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technological model transformation aus bonn de communication costs 3 developing _ areas.*.