Perhaps you should try some spelling variations:
"coder coder propagation based programming" » "coder mode propagation based programming" (Expand search), "coder model propagation based programming" (Expand search), "coder modes propagation based programming" (Expand search), "coder coder propagation and programming" (Expand search), "coder coder propagation speed programming" (Expand search), "coder coder proposition based programming" (Expand search), "coder coder propagation based program" (Expand search), "coder coder propagation cone programming" (Expand search), "coder decoder propagation based programming" (Expand search), "code code propagation based programming" (Expand search), "decoder codec propagation based programming" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons 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 propagation based programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder propagation based programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder propagation based programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder propagation based programming") OR ("_ python python python programming"))*.