Perhaps you should try some spelling variations:
"and estimation using computer programming" » "and estimation using computer program" (Expand search), "and estimation using computer programs" (Expand search), "and estimation in computer programming" (Expand search), "and estimation and computer programming" (Expand search), "age estimation using computer programming" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking python 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: "((\"and estimation using computer programming\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( and estimation using computer programming ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and estimation using computer programming") OR ("using coding python python programming"))*.