Perhaps you should try some spelling variations:
"parameters optimization algorithmssssss" » "parameters optimisation algorithm", "parameter optimization algorithmssssss", "parameter estimation algorithmssssss", "parameters optimisation algorithmsssss", "parameters estimation algorithmssssss", "parameters estimation algorithmsssss"
"attributed optimization algorithms" » "attribute optimization algorithms", "attributed optimisation algorithm", "attributed estimation algorithms", "attributed estimation algorithm"

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 algorithmssssss\") OR (\"attributed optimization algorithms\"))~".
• Removing quotes may allow a broader search: (( parameters optimization algorithmssssss ) OR ( attributed optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("parameters optimization algorithmssssss") OR ("attributed optimization algorithms"))*.