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

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

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