Perhaps you should try some spelling variations:
"coder _ ranking algorithm array" » "coder _ tracking algorithm array" (Expand search), "coder _ tracking algorithms array" (Expand search), "coder _ training algorithm array" (Expand search), "coder _ ranking algoritmos array" (Expand search), "coder _ ranking algorithm aaa" (Expand search), "coder _ ranking algorithm binary" (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 _ ranking algorithm array") OR ("via python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder _ ranking algorithm array\") OR (\"via python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder _ ranking algorithm array ) OR ( via python python python programming ))*.