Perhaps you should try some spelling variations:
"by computational complexity user program" » "_ computational complexity user program" (Expand search), "and computational complexity user program" (Expand search), "by computational complexity based program" (Expand search), "by computational complexity un program" (Expand search), "by computational complexity index program" (Expand search), "by computational complexity laser program" (Expand search), "by computational complexity seer program" (Expand search), "by computational complexity emer program" (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: (("by computational complexity user program") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"by computational complexity user program\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( by computational complexity user program ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("by computational complexity user program") OR ("using coding python python programming"))*.