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