Perhaps you should try some spelling variations:
algorithm vectorization » algorithms vectorization (Expand search), algorithm optimization (Expand search), algorithm derivation (Expand search)
vectorization model » restoration model (Expand search), vectorization of (Expand search), periodization models (Expand search)
code selection » mode selection (Expand search), node selection (Expand search), clone selection (Expand search)
using coding » using coping (Expand search), using coating (Expand search), using cooking (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "(( code selection algorithm vectorization model ) OR ( using coding _ python programming ))~".
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