Perhaps you should try some spelling variations:
vol developpement » ou developpement, de developpement, le developpement
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
inflation target » inflation targeting, inflation rate, inflation rates
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
technology 3 » technology _, technology 1, technology 4
3 inflation » _ inflation, 2 inflation, 6 inflation
target rule » targets rule, target rate, target file
rule 3.1 » rule 13.1, rule 3.2, rule 3.3
3 vol » 3 von, 3 vom, _ vol

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

• Adding a wildcard symbol may retrieve word variants: technology 3 inflation target rule 3.1 communication 3 vol developpement en afrique.*.