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 raft from python programming" » "using raft from pathogen programming" (Expand search), "using raft from anthony programming" (Expand search), "using kraft from python programming" (Expand search), "using rat from python programming" (Expand search), "usina kraft from python programming" (Expand search), "using graft from python programming" (Expand search), "using rafts from python programming" (Expand search), "using grafts 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 raft from python programming\"))~".
• Removing quotes may allow a broader search: (( using computation using computer program ) OR ( using raft from python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using computation using computer program") OR ("using raft from python programming"))*.