Perhaps you should try some spelling variations:
"modified parameter optimization algorithms" » "modified parameter optimisation algorithm", "modified parameter estimation algorithm", "modified parameter optimized algorithms", "modified parameters optimization algorithms"
"modified response estimation algorithms" » "modified response estimation algorithm", "modified response optimisation algorithm", "modified response approximation algorithms", "modified response optimization algorithms", "modified pose estimation algorithms", "modified response association 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 parameter optimization algorithms\") OR (\"modified response estimation algorithms\"))~".
• Removing quotes may allow a broader search: (( modified parameter optimization algorithms ) OR ( modified response estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified parameter optimization algorithms") OR ("modified response estimation algorithms"))*.