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