Perhaps you should try some spelling variations:
"coder coding _ coverage problem" » "coder coding _ covering problem" (Expand search), "coder coding _ cover problem" (Expand search), "coder coding _ covering problems" (Expand search), "modern coding _ coverage problem" (Expand search), "color coding _ coverage problem" (Expand search), "odor coding _ coverage 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 _ coverage problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding _ coverage problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding _ coverage problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding _ coverage problem") OR ("api python python python programming"))*.