Perhaps you should try some spelling variations:
"coder coder complexity metrics of" » "coder code complexity metrics of" (Expand search), "coder model complexity metrics of" (Expand search), "coder lower complexity metrics of" (Expand search), "coder decoder complexity metrics of" (Expand search), "code code complexity metrics of" (Expand search), "decoder codec complexity metrics of" (Expand search), "coder coder complexity metrics _" (Expand search), "coder coder complexity metrics in" (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), "rpa 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 coder complexity metrics of") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder complexity metrics of\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder complexity metrics of ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder complexity metrics of") OR ("api python python python programming"))*.