Perhaps you should try some spelling variations:
"coder coder data operating procedure" » "coder coder dental operating procedure" (Expand search), "coder coder data generating procedure" (Expand search), "coder coder batch operating procedure" (Expand search), "coder decoder data operating procedure" (Expand search), "code code data operating procedure" (Expand search), "decoder codec data operating procedure" (Expand search), "coder cover data operating procedure" (Expand search), "coder code data operating procedure" (Expand search), "coder border data operating procedure" (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 coder data operating procedure") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder data operating procedure\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder data operating procedure ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder data operating procedure") OR ("_ python python python programming"))*.