Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technology rapid » technology rate, technology road, technology trap
developpement du » developpement de, developpement des, developpement et
rapid inflation » rapid population
inflation state » inflation starts, inflation rate, simulation state
space data » spaces data, sparse data, place data
du afrique » en afrique, l afrique, de l'afrique

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

• Adding a wildcard symbol may retrieve word variants: technology rapid inflation state space data communications costs _ developpement du afrique.*.