Perhaps you should try some spelling variations:
"modified static optimization algorithms" » "modified static optimisation algorithm", "modified static estimation algorithms", "modified static estimation algorithm", "modified static optimisation algorithms", "modified static estimation algorithmss", "modified stage optimization algorithms", "modified stochastic optimization algorithms", "modified staffing optimization algorithms"
"modified quadratic optimization algorithm" » "modified quadratic optimisation algorithm", "modified quadratic estimation algorithm", "modified quadratic estimation algorithms"

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