Perhaps you should try some spelling variations:
technology leaders » technology readiness, technology trade, technology users
leaders inflation » leaders inflection, cases inflation, taxes inflation
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
developpement du » developpement de, developpement des, developpement et
inflation wages » inflation rates, inflation taxes, inflation targets
4 developpement » de developpement, le developpement, et developpement
wages space » wages race
du afrique » en afrique, l afrique, de l'afrique
space 2.7 » space 2.1, space 2.2, space 2.3
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology leaders inflation wages space 2.7 communication costs 4 developpement du afrique.*.