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

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified allocation approximation algorithms") or ("modified static optimization algorithms"))~.
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