Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
developpement de » developpement des, developpement durable
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
de afrique » de l'afrique, en afrique, l afrique
flow rate » flow data
rate 2.3 » rates 2.3, rate 2.4, rate 4.3

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 2.3 communication costs _ developpement de afrique.*.