Perhaps you should try some spelling variations:
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
technology 2.2 » technology _, technology 1, technology 3
2.2 election » 2.2 selection, 12.2 selection, 2.2 selektion
time rates » time rate, crime rates, prime rates
de afrique » de l'afrique, en afrique, l afrique
rates 5.2 » rates 4.2, rate 5.2, rates 3.2
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 2.2 election time rates 5.2 communication costs 4 developpement de afrique.*.