Perhaps you should try some spelling variations:
change simulations » change implications, carlo simulations, change population
technology change » technological change, technological changes
simulations rates » simulations notes, simulation states, simulations based
19 communication » 1 communication, 10 communication, 9 communication
developpement en » developpement et, developpement des, developpement de
4 developpement » de developpement, le developpement, et developpement
rates dan » rates data, rates hans, rates a
costs 4 » costs _, costs a, costs 4.2
dan 19 » dan 1951, dan 1963, dan 1965

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

• Adding a wildcard symbol may retrieve word variants: technology change simulations rates dan 19 communication costs 4 developpement en afrique.*.