Perhaps you should try some spelling variations:
"coder coder _ calibration programming" » "coder coder _ calibration program" (Expand search), "coder coder _ manipulation programming" (Expand search), "coder coder _ application programming" (Expand search), "coder decoder _ calibration programming" (Expand search), "code code _ calibration programming" (Expand search), "decoder codec _ calibration programming" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api 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 _ calibration programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder _ calibration programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder _ calibration programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder _ calibration programming") OR ("api python python python programming"))*.