Perhaps you should try some spelling variations:
"modified multiobjective optimisation algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithm", "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective estimation algorithms"
"modified bayesian optimizer algorithms" » "modified bayesian optimized algorithms", "modified bayesian optimized algorithm", "modified bayesian optimization algorithms"

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

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