Perhaps you should try some spelling variations:
"coder coder file on programming" » "coder coder file in programming" (Expand search), "coder coder file cone programming" (Expand search), "coder coder file and programming" (Expand search), "coder decoder file on programming" (Expand search), "code code file on programming" (Expand search), "decoder codec file on programming" (Expand search), "coder modern file on programming" (Expand search), "coder coder files on programming" (Expand search), "coder coder file of programming" (Expand search)
"_ python python python programming" » "_ python python pythin programming" (Expand search), "_ python python pythcone programming" (Expand search), "_ python python pythand programming" (Expand search), "_ 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 file on programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder file on programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder file on programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder file on programming") OR ("_ python python python programming"))*.