Perhaps you should try some spelling variations:
"based computation using computer program" » "based computational using computer program" (Expand search), "based competition using computer program" (Expand search), "based compilation using computer program" (Expand search), "based computations using computer program" (Expand search), "based computation in computer program" (Expand search), "based composition using computer program" (Expand search)
"using food from python programming" » "using food from pathogen programming" (Expand search), "using food from anthony programming" (Expand search), "during food from python programming" (Expand search), "using four from python programming" (Expand search), "using foods from python programming" (Expand search), "using wood from python programming" (Expand search), "using food food 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: (("based computation using computer program") OR ("using food from python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computation using computer program\") OR (\"using food from python programming\"))".
• Removing quotes may allow a broader search: (( based computation using computer program ) OR ( using food from python programming )).
• Adding a wildcard symbol may retrieve word variants: (("based computation using computer program") OR ("using food from python programming"))*.