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
du developpement » de developpement, le developpement, et developpement
technology u.s » technology uses, technology 2.2, technology use
u.s inflation » und inflation, 2.3 inflation, 3.2 inflation
target spaces » target species, target states, target prices
des afrique » en afrique, de l'afrique
spaces 4.1 » space 4.1, spaces 1.1, spaces 2.1

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

• Adding a wildcard symbol may retrieve word variants: technology u.s inflation target spaces 4.1 communication _ du developpement des afrique.*.