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

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified stochastic optimized algorithm") or ("modified parameter optimization algorithmss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified stochastic optimized algorithm") OR ("modified parameter optimization algorithmss"))*.
• Removing quotes may allow a broader search: (( modified stochastic optimized algorithm ) or ( modified parameter optimization algorithmss ))*.