Perhaps you should try some spelling variations:
data communication » data communications
development banks » development bank
information gaps » information gap
2.2 information » 4.2 information, 2.2.3 information, 2.2 transformation
technology 2.2 » technology _, technology 1, technology 3
gaps hbs » gaps how

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• Performing a fuzzy search may retrieve terms with similar spellings: technology 2.2 information gaps hbs data communication networks _ development banks afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology 2.2 information gaps hbs data communication networks _ development banks afrique.*.