Perhaps you should try some spelling variations:
"based computational complexity using program" » "and computational complexity using program" (Expand search), "by computational complexity using program" (Expand search), "based computational complexity during program" (Expand search), "based computational complexity un program" (Expand search), "based computational complexity user program" (Expand search), "based computational complexity housing program" (Expand search), "based computational complexity nursing program" (Expand search), "based computational complexity aging program" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("based computational complexity using program") OR ("using using python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computational complexity using program\") OR (\"using using python python programming\"))".
• Removing quotes may allow a broader search: (( based computational complexity using program ) OR ( using using python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("based computational complexity using program") OR ("using using python python programming"))*.