Perhaps you should try some spelling variations:
"machine learning solution algorithm" » "machine learning evolution algorithm", "machine learning convolution algorithms", "machine learning evolutionary algorithm", "machine learning convolution algorithm", "machine learning emotion algorithm"
"modified time approximation algorithms" » "modified one approximation algorithms", "modified _ approximation algorithms", "modified bi1 approximation algorithms", "modified male approximation algorithms"

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

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