Perhaps you should try some spelling variations:
"coder coverage of sampling program" » "coder coverage of labeling program" (Expand search), "coder coverage of smoking program" (Expand search), "coder coverage of jumping program" (Expand search), "code coverage of sampling program" (Expand search), "cancer coverage of sampling program" (Expand search), "center coverage of sampling program" (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 coverage of sampling program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coverage of sampling program\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coverage of sampling program ) OR ( api python python python programming ))*.