Perhaps you should try some spelling variations:
"coder coder using smith problem" » "coder coder using with problem" (Expand search), "coder coder using path problem" (Expand search), "coder coder using with problems" (Expand search), "coder decoder using smith problem" (Expand search), "code code using smith problem" (Expand search), "decoder codec using smith problem" (Expand search), "coder coders using smith problem" (Expand search), "coder cover using smith problem" (Expand search), "coder code using smith problem" (Expand search), "coder coder using smooth problem" (Expand search), "coder coder using schmitt 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 using smith problem") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder using smith problem\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder using smith problem ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder using smith problem") OR ("on python python python programming"))*.