Perhaps you should try some spelling variations:
technological changes » technological change, technological advances
changes simulation » change simulation, change simulations, channel simulation
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
simulation des » simulation _, simulation 4, simulation 3
developing en » developing e, developing eq, developing egg
3 developing » 3 development
des coase » das coase, des cas, des care
coase 4.2 » case 4.2, coast 4.2, coase 4.2.2
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 changes simulation des coase 4.2 communication costs 3 developing en afrique.*.