Perhaps you should try some spelling variations:
"coder coding efficiency learning problems" » "coder coding efficient learning problems" (Expand search), "coder coding efficiency weaning problems" (Expand search), "coder coding efficiency regarding problems" (Expand search), "coder feeding efficiency learning problems" (Expand search), "coder cutting efficiency learning problems" (Expand search), "coder modelling efficiency learning problems" (Expand search), "coder coding efficiency learning process" (Expand search), "coder coding efficiency learning projects" (Expand search), "coder coding efficiency packing problems" (Expand search), "modern coding efficiency learning problems" (Expand search), "color coding efficiency learning problems" (Expand search), "odor coding efficiency learning problems" (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 learning problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding efficiency learning problems\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coding efficiency learning problems ) OR ( api python python python programming ))*.