Perhaps you should try some spelling variations:
"theory computation using visual programing" » "theory computations using visual programing" (Expand search), "theory competition using visual programing" (Expand search), "the computation using visual programing" (Expand search), "theory computation in visual programing" (Expand search), "theory composition using visual programing" (Expand search), "theory computation using visual programming" (Expand search), "theory computation using virtual programming" (Expand search), "theory computation using visual programa" (Expand search), "theory computation using virtual programing" (Expand search)
"using python python python programming" » "using pythons python python programming" (Expand search), "using piton python python programming" (Expand search), "using pitons python python programming" (Expand search), "usando python python python programming" (Expand search), "in python 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: (("theory computation using visual programing") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"theory computation using visual programing\") OR (\"using python python python programming\"))*".
• Removing quotes may allow a broader search: (( theory computation using visual programing ) OR ( using python python python programming ))*.