Perhaps you should try some spelling variations:
"modified notion optimization algorithms" » "modified notion optimisation algorithm", "modified notion estimation algorithms", "modified notion estimation algorithm", "modified network optimization algorithms", "modified policy optimization algorithms", "modified allocation optimization algorithms"
"modified make convolution algorithms" » "modified make evolution algorithm", "modified make solution algorithm", "modified male convolution algorithms"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified make convolution algorithms") OR ("modified notion optimization algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified make convolution algorithms\") OR (\"modified notion optimization algorithms\"))*".
• Removing quotes may allow a broader search: (( modified make convolution algorithms ) OR ( modified notion optimization algorithms ))*.