Perhaps you should try some spelling variations:
"coder coder propagation algorithm parallel" » "coder coder approximation algorithm parallel" (Expand search), "coder coder approximation algorithms parallel" (Expand search), "coder coder propagation algorithms parallel" (Expand search), "coder coder propagation algorithmes parallele" (Expand search), "coder coder propagation algorithmes paralleles" (Expand search), "coder mode propagation algorithm parallel" (Expand search), "coder model propagation algorithm parallel" (Expand search), "coder modes propagation algorithm parallel" (Expand search), "coder decoder propagation algorithm parallel" (Expand search), "code code propagation algorithm parallel" (Expand search), "decoder codec propagation algorithm parallel" (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 algorithm parallel") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder propagation algorithm parallel\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder propagation algorithm parallel ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder propagation algorithm parallel") OR ("_ python python python programming"))*.