Perhaps you should try some spelling variations:
"_ estimation algorithms" » "_ optimization algorithms", "_ optimisation algorithm", "_ approximation algorithms"
"_ simulation algorithm" » "_ solution algorithm", "_ optimisation algorithm", "_ evolution algorithm"
"policy estimation algorithm" » "policy optimization algorithm", "pose estimation algorithm", "motion estimation algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("policy estimation algorithm") or ((("_ simulation algorithm") OR ("_ estimation algorithms"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("policy estimation algorithm") OR ((("_ simulation algorithm") OR ("_ estimation algorithms")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"policy estimation algorithm\") or (((\"_ simulation algorithm\") OR (\"_ estimation algorithms\"))))".
• Removing quotes may allow a broader search: (( policy estimation algorithm ) or ((( _ simulation algorithm ) OR ( _ estimation algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("policy estimation algorithm") or ((("_ simulation algorithm") OR ("_ estimation algorithms"))))*.