Perhaps you should try some spelling variations:
"parameters optimization algorithmssssssss" » "parameters optimization algorithms", "parameter optimization algorithmssssssss", "parameter estimation algorithmssssssss", "parameters optimization algorithmsssssssss", "parameters optimisation algorithmssssssss", "parameters estimation algorithmssssssss"
"attributes optimization algorithm" » "attribute optimization algorithm", "attributes optimization algorithms", "attributes optimisation algorithm", "attributes 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 algorithm") or ("parameters optimization algorithmssssssss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("attributes optimization algorithm") OR ("parameters optimization algorithmssssssss")).
• Removing quotes may allow a broader search: (( attributes optimization algorithm ) or ( parameters optimization algorithmssssssss )).
• Adding a wildcard symbol may retrieve word variants: (("attributes optimization algorithm") or ("parameters optimization algorithmssssssss"))*.