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