Perhaps you should try some spelling variations:
"modified parameters optimization algorithms" » "modified parameter optimization algorithms", "modified parameter estimation algorithms", "modified parameters optimisation algorithm", "modified parameters estimation algorithms", "modified parameters estimation algorithm"
"modified notion optimizer algorithms" » "modified notion optimized algorithms", "modified notion optimized algorithm"

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