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