Perhaps you should try some spelling variations:
"poses estimation algorithms" » "poses estimation algorithm", "poses optimization algorithms", "poses optimisation algorithm", "pose estimation algorithms", "pulses estimation algorithms", "cover estimations algorithms"
"_ optimizer algorithmss" » "_ optimizer algorithms", "_ optimized algorithm", "_ optimize algorithmss", "_ optimise algorithmss"
"_ optimized algorithms" » "_ optimized algorithm", "_ optimizer algorithms", "_ optimization algorithms"

Try widening your search to All Fields.

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