Perhaps you should try some spelling variations:
"_ optimization algorithm" » "_ optimization algorithms", "_ optimisation algorithm", "_ estimation algorithm"
"pose estimation algorithms" » "pose estimation algorithm", "pose optimization algorithms", "pose optimisation algorithm"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ optimisation algorithm"

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

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