Perhaps you should try some spelling variations:
"coder coder sampling scale problems" » "coder under sampling scale problems" (Expand search), "coder over sampling scale problems" (Expand search), "coder core sampling scale problems" (Expand search), "coder coder sampling flame problems" (Expand search), "coder coder sampling schemes problems" (Expand search), "coder coder sampling value problems" (Expand search), "coder coder sampling some problems" (Expand search), "coder coder sampling solve problems" (Expand search), "coder decoder sampling scale problems" (Expand search), "code code sampling scale problems" (Expand search), "decoder codec sampling scale 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 scale problems") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder sampling scale problems\") OR (\"on python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder sampling scale problems ) OR ( on python python python programming ))*.