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

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

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