Perhaps you should try some spelling variations:
"modified bayesian optimisation algorithm" » "modified bayesian optimization algorithms", "modified bayesian estimation algorithm", "modified bayesian estimation algorithms", "modified bayesian optimization algorithm"
"modified positive convolution algorithms" » "modified positive evolution algorithm", "modified positive solution algorithm", "modified positive solutions algorithms", "modified passive convolution algorithms", "modified adaptive convolution algorithms"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified positive convolution algorithms") or ("modified bayesian optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified positive convolution algorithms") OR ("modified bayesian optimisation algorithm")).
• Removing quotes may allow a broader search: (( modified positive convolution algorithms ) or ( modified bayesian optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified positive convolution algorithms") or ("modified bayesian optimisation algorithm"))*.