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