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"
"machine learning evolution algorithm" » "machine learning solution algorithm", "machine learning evolutionary algorithm", "machine learning convolution algorithms", "machine learning convolution algorithm", "machine learning emotion algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified objective optimization algorithm") OR ("machine learning evolution algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified objective optimization algorithm\") OR (\"machine learning evolution algorithm\"))".
• Removing quotes may allow a broader search: (( modified objective optimization algorithm ) OR ( machine learning evolution algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective optimization algorithm") OR ("machine learning evolution algorithm"))*.