Perhaps you should try some spelling variations:
"coder coder time teaching problems" » "coder coder time teaching problem" (Expand search), "coder coder time breathing problems" (Expand search), "coder coder time teaching process" (Expand search), "coder coder active teaching problems" (Expand search), "coder decoder time teaching problems" (Expand search), "code code time teaching problems" (Expand search), "decoder codec time teaching problems" (Expand search), "coder cover time teaching problems" (Expand search), "coder modern time teaching problems" (Expand search), "coder over time teaching problems" (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 time teaching problems") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder time teaching problems\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder time teaching problems ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder time teaching problems") OR ("on python python python programming"))*.