Perhaps you should try some spelling variations:
"based computational using allocation problem" » "and computational using allocation problem" (Expand search), "by computational using allocation problem" (Expand search), "based computation using allocation problem" (Expand search), "based computations using allocation problem" (Expand search), "based computacional usinas allocation problem" (Expand search), "based computational using location problem" (Expand search), "based computational using association problem" (Expand search), "based computational single allocation problem" (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: (("based computational using allocation problem") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computational using allocation problem\") OR (\"using python python python programming\"))*".
• Removing quotes may allow a broader search: (( based computational using allocation problem ) OR ( using python python python programming ))*.