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

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified parameter optimization algorithm\") OR (\"modified write optimized algorithms\"))~".
• Removing quotes may allow a broader search: (( modified parameter optimization algorithm ) OR ( modified write optimized algorithms ))~.
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