Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithm" » "modified multiobjective optimization algorithm"
"mapping learning prediction algorithm" » "mapping learning predation algorithm", "mapping learning predators algorithm", "machine learning prediction algorithm", "enabling learning prediction algorithm"

You may be able to get more results by adjusting your search query.

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