Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
developpement de » developpement des, developpement durable
technology gaps » technology gap
inflation rates » inflation rate
e developpement » de developpement, le developpement, et developpement
gaps inflation » has inflation, grade inflation, rapid inflation
rates case » rates cape, states case, rates east
de afrique » de l'afrique, en afrique, l afrique
case 4.1 » case 4.2, case 1

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

• Adding a wildcard symbol may retrieve word variants: technology gaps inflation rates case 4.1 communication costa e developpement de afrique.*.