Perhaps you should try some spelling variations:
"modified notion optimization algorithms" » "modified notion optimisation algorithm", "modified notion estimation algorithms", "modified notion estimation algorithm", "modified network optimization algorithms", "modified policy optimization algorithms", "modified allocation optimization algorithms"
"modified response approximation algorithms" » "modified one approximation algorithms", "modified response association 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 approximation algorithms") or ("modified notion optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified response approximation algorithms") OR ("modified notion optimization algorithms"))*.
• Removing quotes may allow a broader search: (( modified response approximation algorithms ) or ( modified notion optimization algorithms ))*.