Perhaps you should try some spelling variations:
"using computation using simplex program" » "using computational using simplex program" (Expand search), "using imputation using simplex program" (Expand search), "using compilation using simplex program" (Expand search), "using computations using simplex program" (Expand search), "using computation in simplex program" (Expand search), "using composition using simplex program" (Expand search), "using computation using simples program" (Expand search), "using computation using complex program" (Expand search), "using computation using simple program" (Expand search), "using computation using samples program" (Expand search)
"using models from python programming" » "ising models from python programming" (Expand search), "using model from python programming" (Expand search), "nursing models from python programming" (Expand search), "using models from pathogen programming" (Expand search), "using models from anthony programming" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computation using simplex program\") OR (\"using models from python programming\"))~".
• Removing quotes may allow a broader search: (( using computation using simplex program ) OR ( using models from python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using computation using simplex program") OR ("using models from python programming"))*.