Perhaps you should try some spelling variations:
"parameters optimisation algorithm" » "parameter optimization algorithm", "parameter estimation algorithm", "parameters optimization algorithms", "parameters estimation algorithm", "parameters estimation algorithms"
"parameter optimized algorithmssssssssssssssss" » "parameter optimization algorithmssssssssssssssss"

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

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