Perhaps you should try some spelling variations:
"modified learning convolution algorithmss" » "modified learning convolution algorithms", "modified learning evolution algorithm", "mobile learning convolution algorithmss", "modified caging convolution algorithmss"
"modified objective predation algorithm" » "modified objective allocation algorithm", "modified objective predators algorithm", "modified objective estimation algorithm"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified objective predation algorithm") or ("modified learning convolution algorithmss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective predation algorithm") OR ("modified learning convolution algorithmss")).
• Removing quotes may allow a broader search: (( modified objective predation algorithm ) or ( modified learning convolution algorithmss )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective predation algorithm") or ("modified learning convolution algorithmss"))*.