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
technology die » technologie die, technology does, technology 4ir
costs resource » cost resource, coastal resource, crisis resource
die inflation » does inflation, der inflation, price inflation
development l » development li, development 1, development law
target task » target tasks, target risk, target tax
l afrique » en afrique
task 4.1 » task 3.1, task 2.1, task 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology die inflation target task 4.1 communication costs resource development l afrique.*.