Perhaps you should try some spelling variations:
"modified notion estimation algorithms" » "modified notion estimation algorithm", "modified notion optimization algorithms", "modified notion optimisation algorithm", "modified motion estimation algorithms"
"modified cliff prediction algorithm" » "modified cliff predation algorithm", "modified cliff predators algorithm", "modified risk prediction algorithm", "modified churn prediction algorithm", "modified fire prediction algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified cliff prediction algorithm") OR ("modified notion estimation algorithms"))~.
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