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"
"same optimization algorithmssssssssssssss" » "same optimisation algorithmsssssssssssss", "same estimation algorithmssssssssssssss", "same estimation algorithmsssssssssssss", "game optimization algorithmssssssssssssss", "stage optimization algorithmssssssssssssss", "qoe optimization algorithmssssssssssssss"

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