Perhaps you should try some spelling variations:
13.3.9 communication » 13.3.10 communication, 13.4.5 communication, 3.3.2 communication
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
technology data » technology dlt, technology debate, technology debts
data inflation » rate inflation, data information, data innovation
inflation ages » inflation rates, inflation taxes, inflation als
case 13.3.9 » case 1.3.4, case 12.2.9, case 12.3.2
de afrique » de l'afrique, en afrique, l afrique
ages case » wages case, age case, cases case
costs et » costs _, costs 4, costs a

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• Adding a wildcard symbol may retrieve word variants: technology data inflation ages case 13.3.9 communication costs et developpement de afrique.*.