Perhaps you should try some spelling variations:
"_ computations using subsampling program" » "_ computations using sampling program" (Expand search), "_ computation using subsampling program" (Expand search), "_ populations using subsampling program" (Expand search), "_ computations in subsampling program" (Expand search), "_ computations and subsampling program" (Expand search)
"using tool python python programming" » "using tool pythons python programming" (Expand search), "using tool piton python programming" (Expand search), "using tool pitons python programming" (Expand search), "using tools python python programming" (Expand search), "using total python python programming" (Expand search), "using tonal python python 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: "((\"_ computations using subsampling program\") OR (\"using tool python python programming\"))~".
• Removing quotes may allow a broader search: (( _ computations using subsampling program ) OR ( using tool python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("_ computations using subsampling program") OR ("using tool python python programming"))*.