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

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 optimization algorithmssssssssss") OR ("allocation optimization algorithms"))~.
• Removing quotes may allow a broader search: (( parameter optimization algorithmssssssssss ) or ( allocation optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("parameter optimization algorithmssssssssss") or ("allocation optimization algorithms"))*.