Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
inflation target » inflation targeting, inflation rate, inflation rates
developpement et » developpement des, developpement de, development east
technology dlt » technology data, technology debts, technology 21st
dlt inflation » der inflation, die inflation, d inflation
target date » target rate, target range
et afrique » en afrique, l afrique
date 4.1 » daten 4.1, data 4.1, date 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology dlt inflation target date 4.1 communication costs _ developpement et afrique.*.