Perhaps you should try some spelling variations:
"coder coding coding upon duplication" » "coder coding coding non duplication" (Expand search), "coder coding coding upon application" (Expand search), "coder coding coding p12 duplication" (Expand search), "coder coding decoding upon duplication" (Expand search), "coder coding using upon duplication" (Expand search), "coder coding canine upon duplication" (Expand search), "modern coding coding upon duplication" (Expand search), "color coding coding upon duplication" (Expand search), "odor coding coding upon duplication" (Expand search), "coder coding coding on duplication" (Expand search), "coder coding coding using duplication" (Expand search), "coder coding reading upon duplication" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons 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 coding coding upon duplication") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding coding upon duplication\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding coding upon duplication ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding coding upon duplication") OR ("_ python python python programming"))*.