Perhaps you should try some spelling variations:
"coder coder based typing problem" » "coder coder based coping problem" (Expand search), "coder coder based mapping problem" (Expand search), "coder coder based testing problem" (Expand search), "coder coder and typing problem" (Expand search), "coder decoder based typing problem" (Expand search), "code code based typing problem" (Expand search), "decoder codec based typing problem" (Expand search), "coder code based typing problem" (Expand search), "coder foder based typing problem" (Expand search), "coder codec based typing problem" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python 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 based typing problem") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder based typing problem\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder based typing problem ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder based typing problem") OR ("_ python python python programming"))*.