Perhaps you should try some spelling variations:
"modified write optimization algorithms" » "modified write optimisation algorithm", "modified write estimation algorithms", "modified write optimized algorithms", "modified game optimization algorithms", "modified qoe optimization algorithms", "modified stage optimization algorithms"
"modified bayesian estimation algorithm" » "modified bayesian optimization algorithm"

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