Perhaps you should try some spelling variations:
"modified parameters optimization algorithms" » "modified parameter optimization algorithms", "modified parameter estimation algorithms", "modified parameters optimisation algorithm", "modified parameters estimation algorithm", "modified parameters optimized algorithms"
"modified notion estimation algorithms" » "modified notion estimation algorithm", "modified notion optimisation algorithm", "modified notion approximation algorithms", "modified motion estimation algorithms"

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

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