Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
developpement de » developpement des, developpement durable
inflation rates » inflation rate
technology low » technology flow, technology law, technology led
low inflation » core inflation, _ inflation
rates rates » rates notes
de afrique » de l'afrique, en afrique, l afrique
rates 4.1 » rates 4.2, rates 4.5, rates 4.3

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

• Adding a wildcard symbol may retrieve word variants: technology low inflation rates rates 4.1 communication costs _ developpement de afrique.*.