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