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