Perhaps you should try some spelling variations:
"coder coder sampling class programa" » "coder under sampling class programa" (Expand search), "coder over sampling class programa" (Expand search), "coder core sampling class programa" (Expand search), "coder coder sampling cross programa" (Expand search), "coder coder sampling biases programa" (Expand search), "coder coder sampling bias programa" (Expand search), "coder coder sampling spss programa" (Expand search), "coder coder sampling capes programa" (Expand search), "coder decoder sampling class programa" (Expand search), "code code sampling class programa" (Expand search), "decoder codec sampling class programa" (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 sampling class programa") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder sampling class programa\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder sampling class programa ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder sampling class programa") OR ("_ python python python programming"))*.