Perhaps you should try some spelling variations:
"coder coder samples value problems" » "coder code samples value problems" (Expand search), "coder cover samples value problems" (Expand search), "coder modern samples value problems" (Expand search), "coder coder sampled values problems" (Expand search), "coder coder samples sale problems" (Expand search), "coder decoder samples value problems" (Expand search), "code code samples value problems" (Expand search), "decoder codec samples value problems" (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 samples value problems") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder samples value problems\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder samples value problems ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder samples value problems") OR ("_ python python python programming"))*.