Perhaps you should try some spelling variations:
"coder coder precoding _ programming" » "coder coherent precoding _ programming" (Expand search), "coder linear precoding _ programming" (Expand search), "coder decoder precoding _ programming" (Expand search), "code code precoding _ programming" (Expand search), "decoder codec precoding _ programming" (Expand search)
"gpi in python python programming" » "gpi in pythons python programming" (Expand search), "gpi in piton python programming" (Expand search), "gpi in pitons python programming" (Expand search), "gpi _ python python programming" (Expand search), "spi in python python programming" (Expand search), "ipi in python python programming" (Expand search), "fpi in python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder precoding _ programming") OR ("gpi in python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder precoding _ programming\") OR (\"gpi in python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder precoding _ programming ) OR ( gpi in python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder precoding _ programming") OR ("gpi in python python programming"))*.