Perhaps you should try some spelling variations:
"using computational using subsampling program" » "and computational using subsampling program" (Expand search), "using computation using subsampling program" (Expand search), "using computations using subsampling program" (Expand search), "using computacional usinas subsampling program" (Expand search), "using computational using sampling program" (Expand search), "using computational and subsampling program" (Expand search)
"using java front python programming" » "using java fluent python programming" (Expand search), "using java monty python programming" (Expand search), "using java on 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: (("using computational using subsampling program") OR ("using java front python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational using subsampling program\") OR (\"using java front python programming\"))*".
• Removing quotes may allow a broader search: (( using computational using subsampling program ) OR ( using java front python programming ))*.