Perhaps you should try some spelling variations:
"parameters optimization algorithmss" » "parameters optimisation algorithm", "parameters estimation algorithms", "parameters estimation algorithm", "parameter optimization algorithmss", "parameter estimation algorithmss", "parameters optimisation algorithms", "parameters estimation algorithmss"
"sphere optimization algorithms" » "sphere optimisation algorithm", "sphere estimation algorithms", "sphere estimation algorithm", "stage optimization algorithms", "response optimization 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: (("parameters optimization algorithmss") OR ("sphere optimization algorithms"))~.
• Removing quotes may allow a broader search: (( parameters optimization algorithmss ) or ( sphere optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("parameters optimization algorithmss") or ("sphere optimization algorithms"))*.