Perhaps you should try some spelling variations:
"based computational using computer program" » "and computational using computer program" (Expand search), "by computational using computer program" (Expand search), "based computation using computer program" (Expand search), "based computations using computer program" (Expand search), "based computacional usinas computer program" (Expand search)
"using models sdms python programming" » "ising models sdms python programming" (Expand search), "using model sdms python programming" (Expand search), "nursing models sdms python programming" (Expand search), "using models sdm python programming" (Expand search), "using model sdm python programming" (Expand search), "using models dados 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: "((\"based computational using computer program\") OR (\"using models sdms python programming\"))~".
• Removing quotes may allow a broader search: (( based computational using computer program ) OR ( using models sdms python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computational using computer program") OR ("using models sdms python programming"))*.