Perhaps you should try some spelling variations:
"coder and coverage transfer function" » "coder and charge transfer function" (Expand search), "coder and voltage transfer function" (Expand search), "coder and cleavage transfer function" (Expand search), "coder and cover transfer function" (Expand search), "code and coverage transfer function" (Expand search), "codes and coverage transfer function" (Expand search), "poder and coverage transfer function" (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 and coverage transfer function") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder and coverage transfer function\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder and coverage transfer function ) OR ( api python python python programming ))*.