Perhaps you should try some spelling variations:
"using computation in computer program" » "using computational in computer program" (Expand search), "using imputation in computer program" (Expand search), "using compilation in computer program" (Expand search), "using computation and computer program" (Expand search), "using computation of computer program" (Expand search), "using computation _ computer program" (Expand search)
"using active from python programming" » "using archive from python programming" (Expand search), "using active aroma python programming" (Expand search), "using active food python programming" (Expand search), "using active from pathogen programming" (Expand search), "using active from anthony 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 computation in computer program") OR ("using active from python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computation in computer program\") OR (\"using active from python programming\"))".
• Removing quotes may allow a broader search: (( using computation in computer program ) OR ( using active from python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computation in computer program") OR ("using active from python programming"))*.