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