Perhaps you should try some spelling variations:
"modeling complexity with coverage of" » "model complexity with coverage of" (Expand search), "modeling complex with coverage of" (Expand search), "governing complexity with coverage of" (Expand search), "modeling complexity in coverage of" (Expand search), "modeling complexity with average of" (Expand search), "modeling complexity with cover 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: "((\"modeling complexity with coverage of\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( modeling complexity with coverage of ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("modeling complexity with coverage of") OR ("using coding python python programming"))*.