Perhaps you should try some spelling variations:
"and functionality based coverage problem" » "and functionality and coverage problem" (Expand search), "and functionality after coverage problem" (Expand search), "and functionality changes coverage problem" (Expand search), "and functional based coverage problem" (Expand search), "and functionality based covering problem" (Expand search), "and functionality based covering problems" (Expand search), "and functionality based coverage from" (Expand search), "and functionality based beverage problem" (Expand search), "and functionality based beverages problem" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking 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: (("and functionality based coverage problem") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and functionality based coverage problem\") OR (\"using coding python python programming\"))*".
• Removing quotes may allow a broader search: (( and functionality based coverage problem ) OR ( using coding python python programming ))*.