Perhaps you should try some spelling variations:
transfer simulations » transfer simulation, transport simulations, transfer stations
de communication » mobile communication, online communication
labour prices » labour process, labor price, labour practices
4 developing » 3 developing
developing e » developing _, developing a, developing east
prices de » prices does, prices _, prices a
e afrique » en afrique, l afrique, de l'afrique
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 transfer simulations labour prices de communication costs 4 developing e afrique.*.