Perhaps you should try some spelling variations:
"_ optimizer algorithms" » "_ optimized algorithms", "_ optimized algorithm", "_ optimization algorithms", "_ optimise algorithms", "_ optimizedr algorithms", "_ optimiser algorithms"
"_ optimize algorithms" » "_ optimized algorithms", "_ optimized algorithm", "_ optimization algorithms", "_ optimise algorithms"
"policy estimation algorithm" » "policy optimization algorithm", "pose estimation algorithm", "motion estimation algorithm"

Try widening your search to All Fields.

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