Perhaps you should try some spelling variations:
"coder coder recognition c programming" » "coder border recognition c programming" (Expand search), "coder mode recognition c programming" (Expand search), "coder order recognition c programming" (Expand search), "coder coder recognition _ programming" (Expand search), "coder coder recognition by programming" (Expand search), "coder coder recognition an programming" (Expand search), "coder coder recognition cone programming" (Expand search), "coder coder recognition and programming" (Expand search), "coder decoder recognition c programming" (Expand search), "code code recognition c programming" (Expand search), "decoder codec recognition c 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 recognition c programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder recognition c programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder recognition c programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder recognition c programming") OR ("_ python python python programming"))*.