Perhaps you should try some spelling variations:
"policy optimisation algorithm" » "policy optimization algorithms", "policy estimation algorithm", "policy estimation algorithms", "policy optimization algorithm", "topology optimization algorithm"
"a simulation algorithm" » "a estimation algorithm", "a solution algorithm", "a estimation algorithms"
"_ simulation algorithm" » "_ estimation algorithm", "_ solution algorithm", "_ estimation algorithms"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("a simulation algorithm") OR ("_ simulation algorithm"))) OR ("policy optimisation algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"a simulation algorithm\") OR (\"_ simulation algorithm\"))) OR (\"policy optimisation algorithm\"))".
• Removing quotes may allow a broader search: (((( a simulation algorithm ) OR ( _ simulation algorithm ))) OR ( policy optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("a simulation algorithm") OR ("_ simulation algorithm"))) OR ("policy optimisation algorithm"))*.