Perhaps you should try some spelling variations:
"coder coder sampling procedural problems" » "coder coder sampling procedures problems" (Expand search), "coder coder sampling procedure problems" (Expand search), "coder coder shaping procedural problems" (Expand search), "coder coder sampling procedural process" (Expand search), "coder coder sampling procedural powers" (Expand search), "coder coder sampling procedural prolog" (Expand search), "coder under sampling procedural problems" (Expand search), "coder over sampling procedural problems" (Expand search), "coder core sampling procedural problems" (Expand search), "coder decoder sampling procedural problems" (Expand search), "code code sampling procedural problems" (Expand search), "decoder codec sampling procedural 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 sampling procedural problems") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder sampling procedural problems\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder sampling procedural problems ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder sampling procedural problems") OR ("on python python python programming"))*.