Perhaps you should try some spelling variations:
"modified invasive optimization algorithmsss" » "modified invasive optimisation algorithm", "modified invasive estimation algorithms", "modified invasive optimisation algorithmss", "modified invasive estimation algorithmsss", "modified invasive estimation algorithmss", "modified passive optimization algorithmsss"
"modified bayesian optimization algorithms" » "modified bayesian optimisation algorithm", "modified bayesian estimation algorithms", "modified bayesian estimation algorithm"

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 bayesian optimization algorithms") or ("modified invasive optimization algorithmsss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified bayesian optimization algorithms") OR ("modified invasive optimization algorithmsss")).
• Removing quotes may allow a broader search: (( modified bayesian optimization algorithms ) or ( modified invasive optimization algorithmsss )).
• Adding a wildcard symbol may retrieve word variants: (("modified bayesian optimization algorithms") or ("modified invasive optimization algorithmsss"))*.