Perhaps you should try some spelling variations:
"modified static optimization algorithms" » "modified static optimisation algorithm", "modified static estimation algorithm", "modified static optimized algorithms", "modified stage optimization algorithms", "modified stochastic optimization algorithms", "modified staffing optimization algorithms"
"modified adaptive estimation algorithms" » "modified adaptive estimation algorithm", "modified adaptive optimisation algorithm", "modified adaptive approximation algorithms", "modified adaptive ventilation algorithms", "modified quantile estimation algorithms", "modified adaptive quantization algorithms", "modified passive estimation algorithms"

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