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