Perhaps you should try some spelling variations:
"modified _ optimization algorithmss" » "modified _ optimization algorithms", "modified _ optimisation algorithm", "modified _ estimation algorithms", "modified _ optimization algorithmsss", "modified _ optimisation algorithmss", "modified _ estimation algorithmss"
"modified parameters optimization algorithm" » "modified parameter optimization algorithm", "modified parameter estimation algorithm", "modified parameters optimization algorithms", "modified parameters optimisation algorithm", "modified parameters estimation algorithm"

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

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