Perhaps you should try some spelling variations:
integration theories » integration theory, integration through, integration efforts
irrigation scheme » irrigation systems
data integration » trade integration, _ integration, data integrity
case irrigation » scale irrigation, change irrigation, canal irrigation
supply data » supply water
supply case » supply cost, supply chain, supply curve

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• Performing a fuzzy search may retrieve terms with similar spellings: (( supply data integration theories. ) or ( supply case irrigation scheme. ))~.
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