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