Perhaps you should try some spelling variations:
"coder _ sampling algorithm data" » "coder _ mapping algorithm data" (Expand search), "coder _ matching algorithm data" (Expand search), "coder _ mapping algorithms data" (Expand search), "coder _ sampling algorithms data" (Expand search), "coder _ sampling algorithm and" (Expand search), "coder _ sampling algorithm with" (Expand search)
"via python python python programming" » "via pythons python python programming" (Expand search), "via piton python python programming" (Expand search), "via pitons python python programming" (Expand search), "in 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 _ sampling algorithm data") OR ("via python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder _ sampling algorithm data\") OR (\"via python python python programming\"))".
• Removing quotes may allow a broader search: (( coder _ sampling algorithm data ) OR ( via python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder _ sampling algorithm data") OR ("via python python python programming"))*.