Perhaps you should try some spelling variations:
"coder detecting coder teaching subject" » "model detecting coder teaching subject" (Expand search), "code detection coder teaching subject" (Expand search), "hole detecting coder teaching subject" (Expand search), "coder detecting code teaching subject" (Expand search), "coder detecting codes teaching subject" (Expand search), "coder detecting cancer teaching subject" (Expand search), "coder detecting poder teaching subject" (Expand search), "coder detecting model teaching subject" (Expand search)
"via python python python programming" » "via pythons python python programming" (Expand search), "via piton python python programming" (Expand search), "via pitons python python programming" (Expand search), "in python 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 detecting coder teaching subject") OR ("via python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder detecting coder teaching subject\") OR (\"via python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder detecting coder teaching subject ) OR ( via python python python programming ))*.