Perhaps you should try some spelling variations:
"modified objective estimation algorithm" » "modified objective optimization algorithm", "modified objective allocation algorithm"
"mapping learning emotion algorithm" » "mapping learning evolution algorithm", "mapping learning predation algorithm", "mapping learning solution algorithm", "machine learning emotion algorithm", "enabling learning emotion algorithm", "mapping learning method algorithm"

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 emotion algorithm") OR ("modified objective estimation algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"mapping learning emotion algorithm\") OR (\"modified objective estimation algorithm\"))".
• Removing quotes may allow a broader search: (( mapping learning emotion algorithm ) OR ( modified objective estimation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("mapping learning emotion algorithm") OR ("modified objective estimation algorithm"))*.