Perhaps you should try some spelling variations:
"parameters estimation algorithmss" » "parameters estimation algorithm", "parameters optimization algorithms", "parameters estimation algorithms", "parameters optimization algorithmss", "parameters optimisation algorithms", "parameter estimation algorithmss", "parameter estimates algorithmss", "parameter optimization algorithmss"
"attributes estimation algorithms" » "attribute optimization algorithms", "attributes estimation algorithm", "attributes optimization algorithms", "attributes optimisation algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("attributes estimation algorithms") OR ("parameters estimation algorithmss"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"attributes estimation algorithms\") OR (\"parameters estimation algorithmss\"))".
• Removing quotes may allow a broader search: (( attributes estimation algorithms ) OR ( parameters estimation algorithmss )).
• Adding a wildcard symbol may retrieve word variants: (("attributes estimation algorithms") OR ("parameters estimation algorithmss"))*.