Perhaps you should try some spelling variations:
"mapping learning predation algorithm" » "mapping learning predators algorithm", "mapping learning estimation algorithm", "mapping learning prediction algorithm", "mapping learning emotion algorithm", "machine learning predation algorithm", "enabling learning predation algorithm"
"modified objective solution algorithm" » "modified objective evolutionary algorithm", "modified objective allocation algorithm", "modified objective evolution algorithm", "modified objective convolution algorithms"

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