Perhaps you should try some spelling variations:
"modified parameters estimation algorithms" » "modified parameter estimation algorithms", "modified parameter estimates algorithms", "modified parameter optimization algorithms", "modified parameters estimation algorithm", "modified parameters optimization algorithms", "modified parameters optimisation algorithm"
"modified location optimized algorithms" » "modified location optimized algorithm", "modified location optimizer algorithms", "modified location optimization algorithms", "modified carbon optimized algorithms"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified parameters estimation algorithms\") OR (\"modified location optimized algorithms\"))~".
• Removing quotes may allow a broader search: (( modified parameters estimation algorithms ) OR ( modified location optimized algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified parameters estimation algorithms") OR ("modified location optimized algorithms"))*.