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