Perhaps you should try some spelling variations:
6.3 communication » 26.3 communication, 2.3 communication, 4.3 communication
technology gaps » technology gap
inflation rates » inflation rate
development lid » development led, development li, development lie
gaps inflation » has inflation, grade inflation, rapid inflation
rates rates » rates notes
costs youth » cost south
lid afrique » l afrique
rates 6.3 » rates 4.3, rate 6.3, rates 6.4

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• Adding a wildcard symbol may retrieve word variants: technology gaps inflation rates rates 6.3 communication costs youth development lid afrique.*.