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