Talvez debería tentar con algunhas variantes ortográficas:
information requirements » nutrition requirements, irrigation requirements, information environments
requirements systems » requirements business, requirements section, requirements based
systems diversifying » systems verifying, systems identifying, systems dimensioning
problem spaces » problem spills
problems fixed » problems faced, problems five, problems fluid

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• Performing a fuzzy search may retrieve terms with similar spellings: information requirements systems diversifying ((problem spaces) or (problems fixed))~.
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