Perhaps you should try some spelling variations:
led developpement » le developpement, leur developpement, de developpement
4 communications » 14 communications, 4 communication, 2 communications
developpement en » developpement et, developpement des, developpement de
from inflation » food inflation, from isolation, from information
rate choice » route choice, vote choice, path choice
choice 4 » choice _, choice a, choice 1

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

• Adding a wildcard symbol may retrieve word variants: technology from inflation rate choice 4 communications _ led developpement en afrique.*.