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

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