Perhaps you should try some spelling variations:
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
4.2 developpement » 4.2 development, de developpement, le developpement
developpement de » developpement des, developpement durable
from inflation » food inflation, from isolation, from information
inflation wage » inflation rate, inflation target, inflation rates
de afrique » de l'afrique, en afrique, l afrique
wage rate » wage rates
rate 5.2 » rates 5.2, rate 5.4, rate 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology from inflation wage rate 5.2 communication costs 4.2 developpement de afrique.*.