Perhaps you should try some spelling variations:
"coder complexity metrics code program" » "code complexity metrics code program" (Expand search), "model complexity metrics code program" (Expand search), "lower complexity metrics code program" (Expand search), "coder complexity metrics model program" (Expand search), "coder complexity ethics code program" (Expand search), "coder complexity metric codes program" (Expand search), "coder complexity metrics code programs" (Expand search), "coder complexity metrics cove program" (Expand search), "coder complexity metrics coppe program" (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 complexity metrics code program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder complexity metrics code program\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder complexity metrics code program ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder complexity metrics code program") OR ("api python python python programming"))*.