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