Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
2.3 communications » 2.3 communication, 4.3 communication, 1.3 communication
technology rapid » technology rate, technology road, technology trap
rapid inflation » rapid population
inflation tax » inflation rate, inflation _, inflation target
des afrique » en afrique, de l'afrique
space 2.3 » space 2.1, space 2.2, space 3.3

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

• Adding a wildcard symbol may retrieve word variants: technology rapid inflation tax space 2.3 communications costs _ developpement des afrique.*.