Perhaps you should try some spelling variations:
"and computational using computer program" » "and computation using computer program" (Expand search), "and computations using computer program" (Expand search), "and computacional usinas computer program" (Expand search), "_ computational using computer program" (Expand search)
"using four from python programming" » "using four from pathogen programming" (Expand search), "using four from anthony programming" (Expand search), "using fourier from python programming" (Expand search), "using flour from python programming" (Expand search), "using femur from python programming" (Expand search), "using odour from 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: (("and computational using computer program") OR ("using four from python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and computational using computer program\") OR (\"using four from python programming\"))".
• Removing quotes may allow a broader search: (( and computational using computer program ) OR ( using four from python programming )).
• Adding a wildcard symbol may retrieve word variants: (("and computational using computer program") OR ("using four from python programming"))*.