Perhaps you should try some spelling variations:
"policy optimization algorithms" » "policy optimisation algorithm", "policy estimation algorithms", "policy estimation algorithm", "topology optimization algorithms"
"_ optimizer algorithms" » "_ optimized algorithms", "_ optimize algorithms", "_ optimise algorithms"
"_ optimized algorithm" » "_ optimized algorithms"

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

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