Perhaps you should try some spelling variations:
"modified objective convolution algorithms" » "modified objective evolution algorithm", "modified objective solution algorithm"
"modified response estimation algorithms" » "modified response estimation algorithm", "modified response optimization algorithms", "modified response optimisation algorithm", "modified pose estimation 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 estimation algorithms") or ("modified objective convolution algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified response estimation algorithms") OR ("modified objective convolution algorithms")).
• Removing quotes may allow a broader search: (( modified response estimation algorithms ) or ( modified objective convolution algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified response estimation algorithms") or ("modified objective convolution algorithms"))*.