Perhaps you should try some spelling variations:
"and optimization using coverage in" » "and optimization and coverage in" (Expand search), "and optimization using average in" (Expand search), "and optimization testing coverage in" (Expand search), "and optimization funding coverage in" (Expand search), "and optimization using coverage of" (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and optimization using coverage in\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( and optimization using coverage in ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and optimization using coverage in") OR ("using coding python python programming"))*.