Perhaps you should try some spelling variations:
"pose estimation algorithms" » "pose optimization algorithms", "pose optimisation algorithm", "pose approximation algorithms"
"3d simulation algorithm" » "3d solution algorithm", "3d optimisation algorithm", "3d evolution algorithm", "_ simulation algorithm", "a simulation algorithm", "mri simulation algorithm"
"via estimation algorithm" » "risk estimation algorithm", "_ estimation algorithm"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("via estimation algorithm") or ("3d simulation algorithm"))) or ("pose estimation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("via estimation algorithm") OR ("3d simulation algorithm"))) OR ("pose estimation algorithms")).
• Removing quotes may allow a broader search: (((( via estimation algorithm ) or ( 3d simulation algorithm ))) or ( pose estimation algorithms )).
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