Perhaps you should try some spelling variations:
"modified model convolution algorithms" » "modified model evolution algorithm", "modified model solution algorithm", "modified male convolution algorithms"
"modified objective optimized algorithm" » "modified objective optimal algorithm", "modified objective optimization algorithm", "modified objective optimized algorithms", "modified objective optimizer algorithms"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified model convolution algorithms") OR ("modified objective optimized algorithm"))~.
• Removing quotes may allow a broader search: (( modified model convolution algorithms ) or ( modified objective optimized algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified model convolution algorithms") or ("modified objective optimized algorithm"))*.