Perhaps you should try some spelling variations:
"modified allocation optimization algorithms" » "modified allocation optimisation algorithm", "modified allocation estimation algorithms", "modified allocation estimation algorithm", "modified allocation optimisation algorithms", "modified allocation estimation algorithmss", "modified location optimization algorithms"
"modified bayesian optimization algorithm" » "modified bayesian optimisation algorithm", "modified bayesian estimation algorithm", "modified bayesian estimation 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 allocation optimization algorithms") or ("modified bayesian optimization algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified allocation optimization algorithms") OR ("modified bayesian optimization algorithm")).
• Removing quotes may allow a broader search: (( modified allocation optimization algorithms ) or ( modified bayesian optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified allocation optimization algorithms") or ("modified bayesian optimization algorithm"))*.