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