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