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