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

Try widening your search to All Fields.

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 algorithmssssssss") or ("parameters optimization algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("attributes optimization algorithmssssssss") OR ("parameters optimization algorithm")).
• Removing quotes may allow a broader search: (( attributes optimization algorithmssssssss ) or ( parameters optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("attributes optimization algorithmssssssss") or ("parameters optimization algorithm"))*.