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

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("pulse optimization algorithmssssssssss") or ("parameters optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("pulse optimization algorithmssssssssss") OR ("parameters optimization algorithms")).
• Removing quotes may allow a broader search: (( pulse optimization algorithmssssssssss ) or ( parameters optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("pulse optimization algorithmssssssssss") or ("parameters optimization algorithms"))*.