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 law » technology 1, technology 2.2, technology 3
law television » la television, new television, a 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 law television flow rate 13.4 communication costs le developpement en afrique.*.