Perhaps you should try some spelling variations:
"same optimization algorithmssssss" » "same optimization algorithms", "same optimisation algorithm", "same optimization algorithmsssssss", "same optimisation algorithmssssss", "same estimation algorithmssssss", "game optimization algorithmssssss", "stage optimization algorithmssssss", "qoe optimization algorithmssssss"
"parameters optimization algorithm" » "parameter optimization algorithm", "parameter estimation algorithm", "parameters optimization algorithms", "parameters optimisation algorithm", "parameters estimation algorithm"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("parameters optimization algorithm") or ("same optimization algorithmssssss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("parameters optimization algorithm") OR ("same optimization algorithmssssss")).
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