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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("write optimization algorithmssssss") or ("parameter optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("write optimization algorithmssssss") OR ("parameter optimization algorithms")).
• Removing quotes may allow a broader search: (( write optimization algorithmssssss ) or ( parameter optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("write optimization algorithmssssss") or ("parameter optimization algorithms"))*.