Perhaps you should try some spelling variations:
"coder coder when teaching programming" » "coder coder when teaching program" (Expand search), "coder coder en teaching programming" (Expand search), "coder coder in teaching programming" (Expand search), "coder coder on teaching programming" (Expand search), "coder decoder when teaching programming" (Expand search), "code code when teaching programming" (Expand search), "decoder codec when teaching programming" (Expand search), "coder poder when teaching programming" (Expand search), "coder model when teaching programming" (Expand search), "coder nodes when teaching programming" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ 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 when teaching programming") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder when teaching programming\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder when teaching programming ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder when teaching programming") OR ("on python python python programming"))*.