Perhaps you should try some spelling variations:
"modified response association algorithms" » "modified response estimation algorithms", "modified response classification algorithm"
"modified notion approximation algorithms" » "modified network approximation algorithms", "modified time approximation algorithms", "modified one approximation 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 response association algorithms") OR ("modified notion approximation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified response association algorithms\") OR (\"modified notion approximation algorithms\"))".
• Removing quotes may allow a broader search: (( modified response association algorithms ) OR ( modified notion approximation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified response association algorithms") OR ("modified notion approximation algorithms"))*.