Perhaps you should try some spelling variations:
"coder coder sampling effect problem" » "coder coder sampling effort problem" (Expand search), "coder coder sampling efforts problem" (Expand search), "coder coder coupling effect problem" (Expand search), "coder under sampling effect problem" (Expand search), "coder over sampling effect problem" (Expand search), "coder core sampling effect problem" (Expand search), "coder coder sampling effective problem" (Expand search), "coder coder sampling direct problem" (Expand search), "coder coder sampling exact problem" (Expand search), "coder decoder sampling effect problem" (Expand search), "code code sampling effect problem" (Expand search), "decoder codec sampling effect problem" (Expand search)
"and python python python programming" » "and pythons python python programming" (Expand search), "and piton python python programming" (Expand search), "and pitons python python programming" (Expand search), "in python python python programming" (Expand search), "on python python python programming" (Expand search), "api 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 sampling effect problem") OR ("and python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder sampling effect problem\") OR (\"and python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder sampling effect problem ) OR ( and python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder sampling effect problem") OR ("and python python python programming"))*.