Perhaps you should try some spelling variations:
13.3 communication » 1.3 communication, 3.3 communication, 13.3.9 communication
communication from » communication 3, communication 1, communication 3.3
dem developpement » de developpement, des developpements, le developpement
targeting date » targeting debate, targeting bace, targeting case
des afrique » en afrique, de l'afrique
date 13.3 » date 1.3.4, daten 3.3, care 13.3

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

• Adding a wildcard symbol may retrieve word variants: technology _ inflation targeting date 13.3 communication from dem developpement des afrique.*.