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