Perhaps you should try some spelling variations:
"coder coder and statistical model" » "coder coder and statistical models" (Expand search), "coder coder _ statistical model" (Expand search), "coder decoder and statistical model" (Expand search), "code code and statistical model" (Expand search), "decoder codec and statistical model" (Expand search), "coder code and statistical model" (Expand search), "coder codes and statistical model" (Expand search), "coder poder and statistical model" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons 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 and statistical model") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder and statistical model\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder and statistical model ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder and statistical model") OR ("_ python python python programming"))*.