Perhaps you should try some spelling variations:
"modified objective optimisation algorithms" » "modified objective optimization algorithms", "modified objective estimation algorithms", "modified objective estimation algorithm", "modified objective optimization algorithmss", "modified objective estimation algorithmss", "modified multiobjective optimization algorithms"
"modified policy optimisation algorithm" » "modified policy optimization algorithms", "modified policy estimation algorithm", "modified policy estimation algorithms", "modified policy optimization algorithm", "modified topology optimization algorithm"

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

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