Perhaps you should try some spelling variations:
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
integration wage » integration wege, integration wie, integration work
res integration » dis integration, 1.2 integration, process integration
technology res » technology risk, technology r, technology risks
de development » e development, ce development, de developpement
wage rate » wage rates
rate 5.2 » rates 5.2, rate 5.4, rate 4.2
costs de » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology res integration wage rate 5.2 communication costs de development 1 africa.*.