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