Perhaps you should try some spelling variations:
technology transport » technology transfer, technology transfers, technology transters
transport simulation » transport regulation, transport deregulation, transport association
simulation goods » simulation goals, simulation games, simulation code
a communication » la communication, data communication, data communications
4 development » 2 development, 4 developing
goods prices » goods services, gas prices
1 afrique » l afrique, en afrique, 1 enrique
prices a » prices _
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology transport simulation goods prices a communication costs 4 development 1 afrique.*.