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 of teaching software" » "coder decoder of teaching software" (Expand search), "code code of teaching software" (Expand search), "decoder codec of teaching software" (Expand search), "coder code of teaching software" (Expand search), "coder codes of teaching software" (Expand search), "coder codex of teaching software" (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 of teaching software") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder of teaching software\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder of teaching software ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder of teaching software") OR ("_ python python python programming"))*.