Perhaps you should try some spelling variations:
"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)
"coder coder coding ldpc object" » "coder modern coding ldpc object" (Expand search), "coder color coding ldpc object" (Expand search), "coder odor coding ldpc object" (Expand search), "coder decoder coding ldpc object" (Expand search), "code code coding ldpc object" (Expand search), "decoder codec coding ldpc object" (Expand search), "coder coder coding lpc object" (Expand search), "coder coder codigo ldpc object" (Expand search), "coder coder codigos ldpc object" (Expand search), "coder coder coding ludic object" (Expand search), "coder coder coding lac object" (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 coding ldpc object") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder coding ldpc object\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder coding ldpc object ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder coding ldpc object") OR ("on python python python programming"))*.