Perhaps you should try some spelling variations:
"modified objective convolution algorithms" » "modified objective evolution algorithm", "modified objective solution algorithm"
"modified global predation algorithm" » "modified global predators algorithm", "modified global estimation algorithm", "modified global production algorithm", "modified global edition algorithm", "modified global variation algorithm"

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 objective convolution algorithms") OR ("modified global predation algorithm"))~.
• Removing quotes may allow a broader search: (( modified objective convolution algorithms ) or ( modified global predation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective convolution algorithms") or ("modified global predation algorithm"))*.