Perhaps you should try some spelling variations:
"modified passive quantization algorithm" » "modified passive estimation algorithm", "modified adaptive quantization algorithm"
"modified 3d simulation algorithm" » "modified 3d estimation algorithm", "modified 3d solution algorithm", "modified 3d optimisation algorithm", "modified _ simulation algorithm", "modified a simulation algorithm", "modified mri simulation algorithm", "modified df simulation algorithm", "modified adam simulation algorithm"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified 3d simulation algorithm\") OR (\"modified passive quantization algorithm\"))~".
• Removing quotes may allow a broader search: (( modified 3d simulation algorithm ) OR ( modified passive quantization algorithm ))~.
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