Perhaps you should try some spelling variations:
"coder coder retains parallel programming" » "coder coder series parallel programming" (Expand search), "coder coder bedding parallel programming" (Expand search), "coder coder chain parallel programming" (Expand search), "coder decoder retains parallel programming" (Expand search), "code code retains parallel programming" (Expand search), "decoder codec retains parallel 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 retains parallel programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder retains parallel programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder retains parallel programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder retains parallel programming") OR ("_ python python python programming"))*.