Perhaps you should try some spelling variations:
vectorization problem » sectorization problem (Expand search), restoration problem (Expand search), vectorization paradigm (Expand search)
matlab vectorization » matrix factorization (Expand search), text vectorization (Expand search), and vectorization (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
coder matlab » codigo matlab (Expand search), code atlas (Expand search), calor matlab (Expand search)
coder coder » coder decoder (Expand search), code code (Expand search), decoder codec (Expand search)
in python » _ python (Expand search)

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