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