Perhaps you should try some spelling variations:
transfer insulation » transfer innovation, transfer simulation, transfer simulations
2.3 communication » 3.2 communication, de communication, 4 communication
developpement en » developpement et, developpement des, developpement de
insulation wage » insulation case, insulation layer, insulation glass
a developpement » au developpement, de developpement, le developpement
wage rate » wage rates
rate 2.3 » rates 2.3, rate 2.4, rate 4.3
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology transfer insulation wage rate 2.3 communication costs a developpement en afrique.*.