Perhaps you should try some spelling variations:
"coder coding efficiency detection problem" » "coder coding efficient detection problem" (Expand search), "coder coding efficiency selection problem" (Expand search), "coder coding efficiency reduction problem" (Expand search), "coder feeding efficiency detection problem" (Expand search), "coder cutting efficiency detection problem" (Expand search), "coder modelling efficiency detection problem" (Expand search), "coder coding efficiency detection program" (Expand search), "coder coding efficiency prediction problem" (Expand search), "modern coding efficiency detection problem" (Expand search), "color coding efficiency detection problem" (Expand search), "odor coding efficiency detection problem" (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 coding efficiency detection problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding efficiency detection problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding efficiency detection problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding efficiency detection problem") OR ("api python python python programming"))*.