Perhaps you should try some spelling variations:
"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)
"coder and coverage of string" » "coder and cover of string" (Expand search), "code and coverage of string" (Expand search), "codes and coverage of string" (Expand search), "poder and coverage of string" (Expand search), "coder and coverage of strong" (Expand search), "coder and coverage of strains" (Expand search), "coder and coverage of strain" (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 of string") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder and coverage of string\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder and coverage of string ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder and coverage of string") OR ("api python python python programming"))*.