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

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