Perhaps you should try some spelling variations:
3.3.2 communication » 3.4.2 communication, 3.2.3.2 communication, 13.3.9 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 case » rates cape, states case, rates east
case 3.3.2 » case 4.3.2, case 5.3.2, case 2.3.2
de afrique » de l'afrique, en afrique, l afrique

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 case 3.3.2 communication costs _ developpement de afrique.*.