Perhaps you should try some spelling variations:
"modified multiobjective optimisation algorithms" » "modified multiobjective optimization algorithms", "modified objective optimization algorithms", "modified multiobjective estimation algorithms", "modified multiobjective estimation algorithm", "modified multiobjective optimization algorithmss", "modified multiobjective estimation algorithmss"
"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 multiobjective optimisation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified policy optimisation algorithm\") OR (\"modified multiobjective optimisation algorithms\"))".
• Removing quotes may allow a broader search: (( modified policy optimisation algorithm ) OR ( modified multiobjective optimisation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified policy optimisation algorithm") OR ("modified multiobjective optimisation algorithms"))*.