Perhaps you should try some spelling variations:
"pulse optimization algorithmssssss" » "pulse optimisation algorithm", "pulse optimisation algorithmsssss", "pulse estimation algorithmssssss", "pulse estimation algorithmsssss", "policy optimization algorithmssssss", "game optimization algorithmssssss", "qoe optimization algorithmssssss"
"parameters optimization algorithms" » "parameter optimization algorithms", "parameter estimation algorithms", "parameters optimisation algorithm", "parameters estimation algorithms", "parameters estimation algorithm"

Try widening your search to All Fields.

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