Perhaps you should try some spelling variations:
"coder coding diffuse _ programming" » "coder using diffuse _ programming" (Expand search), "coder coding different _ programming" (Expand search), "modern coding diffuse _ programming" (Expand search), "color coding diffuse _ programming" (Expand search), "odor coding diffuse _ programming" (Expand search)
"pci with python python programming" » "pci with pythons python programming" (Expand search), "pci with piton python programming" (Expand search), "pci with pitons python programming" (Expand search), "bci with python python programming" (Expand search), "loci with python python programming" (Expand search), "ii with 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 coding diffuse _ programming") OR ("pci with python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding diffuse _ programming\") OR (\"pci with python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coding diffuse _ programming ) OR ( pci with python python programming ))*.