Perhaps you should try some spelling variations:
3.5 communication » 3.2 communication, 3 communication, 2.3 communication
developpement de » developpement des, developpement durable
technology log » technology lag, technology low, technology law
log inflation » low inflation, local inflation, lower inflation
inflation tax » inflation rate, inflation _, inflation target
de afrique » de l'afrique, en afrique, l afrique
rates 3.5 » rates 4.5, rates 3.2, rates 5.5

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

• Adding a wildcard symbol may retrieve word variants: technology log inflation tax rates 3.5 communication costs _ developpement de afrique.*.