Perhaps you should try some spelling variations:
"advanced computation using computer program" » "advanced computations using computer program" (Expand search), "advanced computational using computer program" (Expand search), "advance computational using computer program" (Expand search), "advanced computation in computer program" (Expand search), "advanced composition using computer program" (Expand search)
"using population from python programming" » "aging population from python programming" (Expand search), "ageing population from python programming" (Expand search), "young population from python programming" (Expand search), "using populations from python programming" (Expand search), "using population from pathogen programming" (Expand search), "using population 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: (("advanced computation using computer program") OR ("using population from python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced computation using computer program\") OR (\"using population from python programming\"))".
• Removing quotes may allow a broader search: (( advanced computation using computer program ) OR ( using population from python programming )).
• Adding a wildcard symbol may retrieve word variants: (("advanced computation using computer program") OR ("using population from python programming"))*.