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