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