Perhaps you should try some spelling variations:
"modified objective optimization algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective estimation algorithm"
"machines learning emotion algorithm" » "machine learning emotion algorithm", "active learning emotion algorithm", "mapping learning emotion algorithm", "machines learning evolution algorithm", "machines learning estimation algorithm", "machines learning predation algorithm", "machines 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: (("machines learning emotion algorithm") OR ("modified objective optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"machines learning emotion algorithm\") OR (\"modified objective optimization algorithm\"))".
• Removing quotes may allow a broader search: (( machines learning emotion algorithm ) OR ( modified objective optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("machines learning emotion algorithm") OR ("modified objective optimization algorithm"))*.