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

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

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