Perhaps you should try some spelling variations:
"using computational in computational program" » "and computational in computational program" (Expand search), "using computational and computational program" (Expand search), "using computational _ computational program" (Expand search), "using computational 3d computational program" (Expand search)
"using codes from python programming" » "using code from python programming" (Expand search), "using anodes from python programming" (Expand search), "using cone from python programming" (Expand search), "using codes from pathogen programming" (Expand search), "using codes from anthony programming" (Expand search), "using cestodes 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: (("using computational in computational program") OR ("using codes from python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational in computational program\") OR (\"using codes from python programming\"))".
• Removing quotes may allow a broader search: (( using computational in computational program ) OR ( using codes from python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computational in computational program") OR ("using codes from python programming"))*.