Perhaps you should try some spelling variations:
"coder implementation models r programming" » "coder implementation model r programming" (Expand search), "coder implementation of r programming" (Expand search), "coder implementation and r programming" (Expand search), "code implementation models r programming" (Expand search), "decoder implementation models r programming" (Expand search), "model implementation models r programming" (Expand search), "coder implementation models _ programming" (Expand search), "coder implementation models c programming" (Expand search), "coder implementation models pair programming" (Expand search), "coder implementation models ar programming" (Expand search), "coder implementation models 3 programming" (Expand search)
"python code python python programming" » "python code pythons python programming" (Expand search), "python code piton python programming" (Expand search), "python code pitons python programming" (Expand search), "python codigo python python programming" (Expand search), "python pacote 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 implementation models r programming") OR ("python code python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder implementation models r programming\") OR (\"python code python python programming\"))".
• Removing quotes may allow a broader search: (( coder implementation models r programming ) OR ( python code python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder implementation models r programming") OR ("python code python python programming"))*.