Perhaps you should try some spelling variations:
"code complexity data computational code" » "code complexity and computational code" (Expand search), "code complexity via computational code" (Expand search), "code complexity based computational code" (Expand search), "code complexity data computational model" (Expand search), "code complexity data computational cost" (Expand search), "code complexity data computational models" (Expand search), "case complexity data computational code" (Expand search), "care complexity data computational code" (Expand search), "the complexity data computational code" (Expand search), "code complexity at computational code" (Expand search), "code complexity an computational code" (Expand search)
"using using python python programming" » "using using pythons python programming" (Expand search), "using using piton python programming" (Expand search), "using using pitons python programming" (Expand search), "using usando python python programming" (Expand search), "using in python python programming" (Expand search), "using fusing python python programming" (Expand search), "housing using python python programming" (Expand search), "nursing using 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: "((\"code complexity data computational code\") OR (\"using using python python programming\"))~".
• Removing quotes may allow a broader search: (( code complexity data computational code ) OR ( using using python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("code complexity data computational code") OR ("using using python python programming"))*.