Perhaps you should try some spelling variations:
"parameters optimization algorithms" » "parameter optimization algorithms", "parameter estimation algorithms", "parameters optimisation algorithm", "parameters estimation algorithms", "parameters estimation algorithm"
"same optimization algorithmssssssss" » "same optimisation algorithmsssssss", "same estimation algorithmssssssss", "same estimation algorithmsssssss", "game optimization algorithmssssssss", "stage optimization algorithmssssssss", "qoe optimization algorithmssssssss"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"parameters optimization algorithms\") OR (\"same optimization algorithmssssssss\"))~".
• Removing quotes may allow a broader search: (( parameters optimization algorithms ) OR ( same optimization algorithmssssssss ))~.
• Adding a wildcard symbol may retrieve word variants: (("parameters optimization algorithms") OR ("same optimization algorithmssssssss"))*.