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