Perhaps you should try some spelling variations:
technology across » technology access, technology africa
across simulation » cross simulation, crop simulation, crisis simulation
2 communication » 3 communication, 4 communication, 1 communication
simulation des » simulation _, simulation 4, simulation 3
developing en » developing e, developing eq, developing egg
a developing » a development
des case » des coase, des cas, des care
costs a » costs _, costs 4
case 2 » case 1

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

• Adding a wildcard symbol may retrieve word variants: technology across simulation des case 2 communication costs a developing en afrique.*.