Perhaps you should try some spelling variations:
"coder coding using r programming" » "coder coding using _ programming" (Expand search), "coder coding using c programming" (Expand search), "coder coding using pair programming" (Expand search), "modern coding using r programming" (Expand search), "color coding using r programming" (Expand search), "odor coding using r programming" (Expand search), "coder modeling using r programming" (Expand search), "coder drying using r programming" (Expand search)
"chan _ python python programming" » "chan _ pythons python programming" (Expand search), "chan _ piton python programming" (Expand search), "chan _ pitons 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 coding using r programming") OR ("chan _ python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding using r programming\") OR (\"chan _ python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding using r programming ) OR ( chan _ python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding using r programming") OR ("chan _ python python programming"))*.