Perhaps you should try some spelling variations:
"coder coder teaching cobol programming" » "coder coder teaching robot programming" (Expand search), "coder coder teaching control programming" (Expand search), "coder coder teaching robots programming" (Expand search), "coder code teaching cobol programming" (Expand search), "coder poder teaching cobol programming" (Expand search), "coder model teaching cobol programming" (Expand search), "coder coder teaching common programming" (Expand search), "coder coder teaching covid programming" (Expand search), "coder decoder teaching cobol programming" (Expand search), "code code teaching cobol programming" (Expand search), "decoder codec teaching cobol 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 teaching cobol programming") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder teaching cobol programming\") OR (\"on python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder teaching cobol programming ) OR ( on python python python programming ))*.