Perhaps you should try some spelling variations:
"based computation using simplex problem" » "based computational using simplex problem" (Expand search), "based competition using simplex problem" (Expand search), "based compilation using simplex problem" (Expand search), "based computations using simplex problem" (Expand search), "based computation in simplex problem" (Expand search), "based composition using simplex problem" (Expand search), "based computation using complex problem" (Expand search), "based computation using sample problem" (Expand search), "based computation using simple problema" (Expand search), "based computation using simple problem" (Expand search), "based computation using samples 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 computation using simplex problem") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computation using simplex problem\") OR (\"using python python python programming\"))".
• Removing quotes may allow a broader search: (( based computation using simplex problem ) OR ( using python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("based computation using simplex problem") OR ("using python python python programming"))*.