Perhaps you should try some spelling variations:
"coder coder typing linear problems" » "coder coder typing nonlinear problems" (Expand search), "coder coder typing singular problems" (Expand search), "coder coder typing quasilinear problems" (Expand search), "coder coder using linear problems" (Expand search), "coder coder typed linear problems" (Expand search), "coder coder type linear problems" (Expand search), "coder decoder typing linear problems" (Expand search), "code code typing linear problems" (Expand search), "decoder codec typing linear problems" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python 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 typing linear problems") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder typing linear problems\") OR (\"in python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder typing linear problems ) OR ( in python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder typing linear problems") OR ("in python python python programming"))*.