Perhaps you should try some spelling variations:
"modified static optimisation algorithmssss" » "modified static optimisation algorithm", "modified static optimization algorithms", "modified static optimization algorithmssss", "modified stage optimization algorithmssss", "modified stochastic optimization algorithmssss"
"modified objective convolution algorithms" » "modified objective evolution algorithm", "modified objective solution algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified objective convolution algorithms") or ("modified static optimisation algorithmssss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective convolution algorithms") OR ("modified static optimisation algorithmssss"))*.
• Removing quotes may allow a broader search: (( modified objective convolution algorithms ) or ( modified static optimisation algorithmssss ))*.