Perhaps you should try some spelling variations:
technology transfers » technology transfer
transfers simulation » transfer simulation, transfer simulations, transport simulation
4 communication » 3 communication, 5.4 communication, de communication
simulation 4 » simulation _
4 developing » 3 developing
developing a » developing _
a african » _ african, 1 african, 2 african
4 primer » a primer, _ primer, 1 primer
primer 4 » primer _, primers _, primed _
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 transfers simulation 4 primer 4 communication costs 4 developing a african.*.