Perhaps you should try some spelling variations:
3.4 communication » 5.4 communication, 3.2 communication, 3.5 communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
television flow » television law, television from, television film
technology a » technology 1, technology 3, technology 4
a television » la television, _ television, 1 television
flow rate » flow data
rate 3.4 » rate 13.4, rate 2.4, rate 5.4
costs le » 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 a television flow rate 3.4 communication costs le developpement en afrique.*.