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