Perhaps you should try some spelling variations:
"parameter estimation algorithms" » "parameter estimation algorithm", "parameter optimization algorithms", "parameter optimisation algorithm", "parameter estimates algorithms"
"notion optimization algorithmssssssssssssssssss" » "network optimization algorithmssssssssssssssssss", "policy optimization algorithmssssssssssssssssss", "allocation optimization algorithmssssssssssssssssss"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("notion optimization algorithmssssssssssssssssss") OR ("parameter estimation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"notion optimization algorithmssssssssssssssssss\") OR (\"parameter estimation algorithms\"))".
• Removing quotes may allow a broader search: (( notion optimization algorithmssssssssssssssssss ) OR ( parameter estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("notion optimization algorithmssssssssssssssssss") OR ("parameter estimation algorithms"))*.