Perhaps you should try some spelling variations:
"coder coder spaced learning problem" » "coder coder spaced learning problems" (Expand search), "coder coder spaced planning problem" (Expand search), "coder coder spaced learning program" (Expand search), "coder coder paced learning problem" (Expand search), "coder coder space learning problem" (Expand search), "coder coder shared learning problem" (Expand search), "coder code spaces learning problem" (Expand search), "coder holder spaces learning problem" (Expand search), "coder border spaces learning problem" (Expand search), "coder decoder spaced learning problem" (Expand search), "code code spaced learning problem" (Expand search), "decoder codec spaced learning 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 spaced learning problem") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder spaced learning problem\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder spaced learning problem ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder spaced learning problem") OR ("on python python python programming"))*.