Perhaps you should try some spelling variations:
"risk estimation algorithms" » "risk optimization algorithms", "risk optimisation algorithm", "risk approximation algorithms", "pose estimation algorithms"
"_ optimized algorithms" » "_ optimized algorithm", "_ optimizer algorithms", "_ optimization algorithms"
"post estimation algorithm" » "pose estimation algorithm", "pulses 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: (("_ optimized algorithms") or ((("post estimation algorithm") or ("risk estimation algorithms"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("_ optimized algorithms") OR ((("post estimation algorithm") OR ("risk estimation algorithms")))).
• Removing quotes may allow a broader search: (( _ optimized algorithms ) or ((( post estimation algorithm ) or ( risk estimation algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("_ optimized algorithms") or ((("post estimation algorithm") or ("risk estimation algorithms"))))*.