Perhaps you should try some spelling variations:
"using computation using computer program" » "using computational using computer program" (Expand search), "using imputation using computer program" (Expand search), "using compilation using computer program" (Expand search), "using computations using computer program" (Expand search), "using computation in computer program" (Expand search), "using composition using computer program" (Expand search)
"using rdna from python programming" » "using rdna from pathogen programming" (Expand search), "using rdna from anthony programming" (Expand search), "using dna from python programming" (Expand search), "using radial from python programming" (Expand search), "using cdna from python programming" (Expand search), "using adna from 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: "((\"using computation using computer program\") OR (\"using rdna from python programming\"))~".
• Removing quotes may allow a broader search: (( using computation using computer program ) OR ( using rdna from python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using computation using computer program") OR ("using rdna from python programming"))*.