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