Perhaps you should try some spelling variations:
13.4 communication » 1.4 communication, 3.4 communication, 13.4.5 communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
television flow » television law, television from, television film
technology 2.2 » technology _, technology 1, technology 3
2.2 television » 2.3 television, 7.2 television, u.s television
flow rate » flow data
rate 13.4 » rate 17.4, rate 3.4, rates 13.1
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 2.2 television flow rate 13.4 communication costs le developpement en afrique.*.