Perhaps you should try some spelling variations:
5.3 communication » 2.3 communication, 4.3 communication, 1.3 communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
technology gaps » technology gap
inflation rates » inflation rate
gaps inflation » has inflation, grade inflation, rapid inflation
rates states » states states, rates rates, cities states
states 5.3 » states 4.3, states 5.1, states 2.3
costs le » costs _, costs 4, costs a

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 states 5.3 communication costs le developpement en afrique.*.