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

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