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