Perhaps you should try some spelling variations:
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (Expand search)
"coder coder coding an exercise" » "coder modern coding an exercise" (Expand search), "coder color coding an exercise" (Expand search), "coder odor coding an exercise" (Expand search), "coder decoder coding an exercise" (Expand search), "code code coding an exercise" (Expand search), "decoder codec coding an exercise" (Expand search), "coder coder coding and exercise" (Expand search), "coder coder coding in exercise" (Expand search), "coder coder encoding an exercise" (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 coding an exercise") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder coding an exercise\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder coding an exercise ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder coding an exercise") OR ("_ python python python programming"))*.