Perhaps you should try some spelling variations:
"_ optimized algorithmssss" » "_ optimized algorithms", "_ optimizer algorithms", "_ optimized algorithmsssss", "_ optimizer algorithmsssss"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ optimisation algorithm"
"pose optimized algorithm" » "pose optimized algorithms", "pose optimizer algorithms", "poses optimized algorithm", "post optimized algorithm", "jose optimized algorithm"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("pose optimized algorithm") or ((("_ estimation algorithms") or ("_ optimized algorithmssss"))))~.
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• Adding a wildcard symbol may retrieve word variants: (("pose optimized algorithm") or ((("_ estimation algorithms") or ("_ optimized algorithmssss"))))*.