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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("attributes optimization algorithm") or ("parameters optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("attributes optimization algorithm") OR ("parameters optimization algorithms"))*.
• Removing quotes may allow a broader search: (( attributes optimization algorithm ) or ( parameters optimization algorithms ))*.