Perhaps you should try some spelling variations:
"optimized implementation of precoder program" » "time implementation of precoder program" (Expand search), "oriented implementation of precoder program" (Expand search), "optimized exploitation of precoder program" (Expand search), "optimized implementation of proder program" (Expand search), "optimized implementation of recovery program" (Expand search), "optimized implementation of precoce programa" (Expand search), "optimized implementation of precoded program" (Expand search), "optimized implementation of premodern program" (Expand search), "optimized implementation to precoder program" (Expand search)
"using using python python programming" » "using using pythons python programming" (Expand search), "using using piton python programming" (Expand search), "using using pitons python programming" (Expand search), "using usando python python programming" (Expand search), "using in python python programming" (Expand search), "using fusing python python programming" (Expand search), "housing using python python programming" (Expand search), "nursing using python python programming" (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"optimized implementation of precoder program\") OR (\"using using python python programming\"))~".
• Removing quotes may allow a broader search: (( optimized implementation of precoder program ) OR ( using using python python programming ))~.
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